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Source: Onagraceae of North America Update, database (version 2011)

ITIS records citing this source
 
 Kingdom Plantae
  Anogra albicaulis (Pursh) Britton -- not accepted
  Anogra coronopifolia (Torr. & A. Gray) Britton -- not accepted
  Anogra nuttalliana Spach -- not accepted
  Boisduvalia Spach -- not accepted -- spike primrose
  Boisduvalia cleistogama Curran -- not accepted
  Boisduvalia densiflora (Lindl.) S. Watson -- not accepted
  Boisduvalia densiflora var. pallescens Suksd. -- not accepted
  Boisduvalia densiflora var. salicina (Nutt. ex Torr. & A. Gray) Munz -- not accepted
  Boisduvalia glabella (Nutt.) Walp. -- not accepted
  Boisduvalia glabella var. campestris (Jeps.) Jeps. -- not accepted
  Boisduvalia macrantha A. Heller -- not accepted
  Boisduvalia pallida Eastw. -- not accepted
  Boisduvalia pygmaea (Speg.) Munz -- not accepted
  Boisduvalia salicina (Nutt. ex Torr. & A. Gray) Rydb. -- not accepted
  Boisduvalia stricta (A. Gray) Greene -- not accepted
  Calylophus Spach -- not accepted -- sundrops
  Calylophus australis Towner & P.H. Raven -- not accepted
  Calylophus berlandieri Spach -- not accepted -- Berlandier's sundrops
  Calylophus berlandieri ssp. berlandieri Spach -- not accepted -- Berlandier's sundrops
  Calylophus berlandieri ssp. pinifolius (Engelm. ex A. Gray) Towner -- not accepted -- Berlandier's sundrops
  Calylophus drummondianus Spach -- not accepted
  Calylophus drummondianus ssp. berlandieri (Spach) Towner & P.H. Raven -- not accepted
  Calylophus hartwegii (Benth.) P.H. Raven -- not accepted -- Hartweg's sundrops
  Calylophus hartwegii ssp. fendleri (A. Gray) Towner & P.H. Raven -- not accepted -- Fendler calylophus, Hartweg's sundrops
  Calylophus hartwegii ssp. filifolius (Eastw.) Towner & P.H. Raven -- not accepted -- Hartweg's sundrops
  Calylophus hartwegii ssp. hartwegii (Benth.) P.H. Raven -- not accepted -- Hartweg's sundrops
  Calylophus hartwegii ssp. lavandulifolius (Torr. & A. Gray) Towner & P.H. Raven -- not accepted
  Calylophus hartwegii ssp. maccartii (Shinners) Towner & P.H. Raven -- not accepted -- MacCart's sundrops
  Calylophus hartwegii ssp. pubescens (A. Gray) Towner & P.H. Raven -- not accepted -- hairy calylophus, Hartweg's sundrops
  Calylophus hartwegii ssp. toumeyi (Small) Towner & P.H. Raven -- not accepted
  Calylophus hartwegii var. filifolius (Eastw.) Shinners -- not accepted
  Calylophus hartwegii var. lavandulifolius (Torr. & A. Gray) Shinners -- not accepted
  Calylophus hartwegii var. maccartii Shinners -- not accepted
  Calylophus hartwegii var. pubescens (A. Gray) Shinners -- not accepted
  Calylophus lavandulifolius (Torr. & A. Gray) P.H. Raven -- not accepted -- lavender calylophus, lavender sundrop, lavenderleaf eveningprimrose, lavenderleaf sundrops
  Calylophus serrulatus (Nutt.) P.H. Raven -- not accepted -- halfshrub calylophus, halfshrub sundrop, serrateleaf eveningprimrose, yellow sundrops
  Calylophus serrulatus var. spinulosus (Nutt. ex Torr. & A. Gray) Shinners -- not accepted
  Calylophus toumeyi (Small) Towner -- not accepted -- Toumey's calylophus, Toumey's sundrops
  Calylophus tubicula (A. Gray) P.H. Raven -- not accepted -- Texas sundrops
  Camissonia Link -- accepted -- suncup
  Camissonia andina (Nutt.) P.H. Raven -- not accepted -- Blackfoot River evening primrose, Blackfoot River evening-primrose, plateau primrose
  Camissonia arenaria (A. Nelson) P.H. Raven -- not accepted -- Fortuna Range suncup
  Camissonia atwoodii Cronquist -- not accepted -- Atwood's evening primrose, Atwood's evening-primrose
  Camissonia bairdii S.L. Welsh -- not accepted -- Baird's camissoria, Baird's evening-primrose
  Camissonia benitensis P.H. Raven -- accepted -- San Benito evening-primrose, San Benito suncup
  Camissonia bistorta (Nutt. ex Torr. & A. Gray) P.H. Raven -- not accepted -- southern suncup
  Camissonia boothii (Douglas) P.H. Raven -- not accepted -- Booth's evening primrose, Booth's evening-primrose, Booth's suncup
  Camissonia boothii ssp. alyssoides (Hook. & Arn.) P.H. Raven -- not accepted -- alyssum evening primrose, alyssum evening-primrose, alyssum eveningprimrose
  Camissonia boothii ssp. boothii (Douglas) P.H. Raven -- not accepted -- Booth's suncup
  Camissonia boothii ssp. condensata (Munz) P.H. Raven -- not accepted -- shredding suncup
  Camissonia boothii ssp. decorticans (Hook. & Arn.) P.H. Raven -- not accepted -- shredding suncup
  Camissonia boothii ssp. desertorum (Munz) P.H. Raven -- not accepted -- desert suncup
  Camissonia boothii ssp. intermedia (Munz) P.H. Raven -- not accepted -- Booth's evening primrose, Booth's evening-primrose, intermediate suncup
  Camissonia boothii ssp. inyoensis (Munz) Munz -- not accepted
  Camissonia boothii ssp. rutila (Davidson) Munz -- not accepted
  Camissonia boothii var. alyssoides (Hook. & Arn.) N.H. Holmgren & P.K. Holmgren -- not accepted
  Camissonia boothii var. condensata (Munz) Cronquist -- not accepted
  Camissonia boothii var. decorticans (Hook. & Arn.) Cronquist -- not accepted
  Camissonia boothii var. desertorum (Munz) Cronquist -- not accepted
  Camissonia boothii var. villosa (S. Watson) Cronquist -- not accepted
  Camissonia breviflora (Torr. & A. Gray) P.H. Raven -- not accepted -- fewflower evening primrose, fewflower evening-primrose, shortflower suncup
  Camissonia brevipes (A. Gray) P.H. Raven -- not accepted -- golden suncup, yellow cups
  Camissonia brevipes ssp. arizonica (P.H. Raven) P.H. Raven -- not accepted -- golden suncup
  Camissonia brevipes ssp. brevipes (A. Gray) P.H. Raven -- not accepted -- golden suncup
  Camissonia brevipes ssp. pallidula (Munz) P.H. Raven -- not accepted -- pallid suncup
  Camissonia californica (Nutt. ex Torr. & A. Gray) P.H. Raven -- not accepted -- California primrose, California suncup
  Camissonia campestris (Greene) P.H. Raven -- accepted -- Mojave suncup
  Camissonia campestris ssp. campestris (Greene) P.H. Raven -- accepted -- Mojave suncup
  Camissonia campestris ssp. obispoensis P.H. Raven -- accepted -- Obispo suncup
  Camissonia cardiophylla (Torr.) P.H. Raven -- not accepted -- heart-leaf suncup, heartleaf suncup
  Camissonia cardiophylla ssp. cardiophylla (Torr.) P.H. Raven -- not accepted -- heartleaf suncup
  Camissonia cardiophylla ssp. robusta (P.H. Raven) P.H. Raven -- not accepted -- heartleaf suncup
  Camissonia chamaenerioides (A. Gray) P.H. Raven -- not accepted -- long-capsule suncup, longcapsule suncup, willowherb suncup
  Camissonia cheiranthifolia (Hornem. ex Spreng.) Raim. -- not accepted -- beach suncup
  Camissonia cheiranthifolia ssp. cheiranthifolia (Hornem. ex Spreng.) Raim. -- not accepted -- beach suncup
  Camissonia cheiranthifolia ssp. suffruticosa (S. Watson) P.H. Raven -- not accepted -- beach suncup
  Camissonia claviformis (Torr. & Frém.) P.H. Raven -- not accepted -- browneyes, clavatefruit suncup
  Camissonia claviformis ssp. aurantiaca (Munz) P.H. Raven -- not accepted -- browneyes
  Camissonia claviformis ssp. claviformis (Torr. & Frém.) P.H. Raven -- not accepted -- browneyes
  Camissonia claviformis ssp. cruciformis (Kellogg) P.H. Raven -- not accepted -- browneyes
  Camissonia claviformis ssp. funerea (P.H. Raven) P.H. Raven -- not accepted -- browneyes
  Camissonia claviformis ssp. integrior (P.H. Raven) P.H. Raven -- not accepted -- browneyes
  Camissonia claviformis ssp. lancifolia (A. Heller) P.H. Raven -- not accepted -- lanceleaf browneyes
  Camissonia claviformis ssp. peeblesii (Munz) P.H. Raven -- not accepted -- Peebles' browneyes
  Camissonia claviformis ssp. peirsonii (Munz) P.H. Raven -- not accepted -- Peirson's browneyes
  Camissonia claviformis ssp. rubescens (P.H. Raven) P.H. Raven -- not accepted -- browneyes
  Camissonia claviformis ssp. yumae (P.H. Raven) P.H. Raven -- not accepted -- Yuma browneyes
  Camissonia claviformis var. aurantiaca (Munz) Cronquist -- not accepted
  Camissonia claviformis var. cruciformis (Kellogg) Cronquist -- not accepted
  Camissonia claviformis var. funerea (P.H. Raven) Cronquist -- not accepted
  Camissonia claviformis var. lancifolia (A. Heller) Cronquist -- not accepted
  Camissonia claviformis var. purpurascens (S. Watson) Cronquist -- not accepted
  Camissonia confertiflora (P.H. Raven) P.H. Raven -- not accepted -- Grand Canyon suncup
  Camissonia confusa P.H. Raven -- not accepted -- San Bernardino suncup
  Camissonia contorta (Douglas) Kearney -- accepted -- contorted suncup, plains evening primrose, plains evening-primrose, plains eveningprimrose
  Camissonia dentata (Cav.) Reiche -- accepted
  Camissonia eastwoodiae (Munz) P.H. Raven -- not accepted -- Grand Junction camissonia
  Camissonia exilis (P.H. Raven) P.H. Raven -- not accepted -- Cottonwood Spring suncup
  Camissonia gouldii P.H. Raven -- not accepted -- Diamond Valley suncup
  Camissonia graciliflora (Hook. & Arn.) P.H. Raven -- not accepted -- hill suncup
  Camissonia guadalupensis (S. Watson) P.H. Raven -- not accepted -- Guadalupe suncup
  Camissonia guadalupensis ssp. clementina (P.H. Raven) P.H. Raven -- not accepted -- Clementine suncup, San Clemente Island evening-primrose
  Camissonia hardhamiae P.H. Raven -- not accepted -- Hardham's evening primrose, Hardham's evening-primrose
  Camissonia heterochroma (S. Watson) P.H. Raven -- not accepted -- Shockley's evening primrose, Shockley's evening-primrose, Shockley's suncup
  Camissonia heterochroma ssp. monoensis (Munz) P.H. Raven -- not accepted
  Camissonia heterochroma var. monoensis (Munz) Cronquist -- not accepted
  Camissonia hilgardii (Greene) P.H. Raven -- not accepted -- Hilgard's suncup
  Camissonia hirtella (Greene) P.H. Raven -- not accepted -- Santa Cruz Island suncup
  Camissonia ignota (Jeps.) P.H. Raven -- not accepted -- Jurupa Hills suncup
  Camissonia integrifolia P.H. Raven -- accepted -- Kern River evening primrose, Kern River evening-primrose
  Camissonia intermedia P.H. Raven -- not accepted -- intermediate suncup
  Camissonia kernensis (Munz) P.H. Raven -- accepted -- Kern County evening primrose, Kern County evening-primrose, Kern suncup
  Camissonia kernensis ssp. gilmanii (Munz) P.H. Raven -- accepted -- Gilman's evening primrose, Gilman's evening-primrose, Gilman's suncup
  Camissonia kernensis ssp. kernensis (Munz) P.H. Raven -- accepted -- Kern County evening primrose, Kern County evening-primrose
  Camissonia kernensis var. gilmanii (Munz) Cronquist -- not accepted
  Camissonia lacustris P.H. Raven -- accepted -- grassland suncup
  Camissonia lewisii P.H. Raven -- not accepted -- Lewis' evening primrose, Lewis' evening-primrose
  Camissonia luciae P.H. Raven -- not accepted -- Santa Lucia suncup
  Camissonia megalantha (Munz) P.H. Raven -- not accepted -- Cane Spring suncup, largeflower suncup
  Camissonia micrantha (Hornem. ex Spreng.) P.H. Raven -- not accepted -- miniature suncup
  Camissonia minor (A. Nelson) P.H. Raven -- not accepted -- small evening primrose, small evening-primrose, small eveningprimrose, small suncup
  Camissonia multijuga (S. Watson) P.H. Raven -- not accepted -- frost-stem suncup, froststem suncup
  Camissonia munzii (P.H. Raven) P.H. Raven -- not accepted -- Death Valley suncup
  Camissonia nevadensis (Kellogg) P.H. Raven -- not accepted -- Nevada suncup
  Camissonia ovata (Nutt. ex Torr. & A. Gray) P.H. Raven -- not accepted -- goldeneggs
  Camissonia pallida (Abrams) P.H. Raven -- not accepted -- pale-yellow suncup, paleyellow suncup
  Camissonia pallida ssp. hallii (Davidson) P.H. Raven -- not accepted -- Hall's suncup
  Camissonia pallida ssp. pallida (Abrams) P.H. Raven -- not accepted -- pale-yellow suncup, paleyellow suncup
  Camissonia palmeri (S. Watson) P.H. Raven -- not accepted -- Palmer's evening primrose, Palmer's evening-primrose, Palmer's suncup, sagebrush suncup
  Camissonia parryi (S. Watson) P.H. Raven -- not accepted -- Parry's suncup, red-clay suncup, redclay suncup
  Camissonia parvula (Nutt. ex Torr. & A. Gray) P.H. Raven -- accepted -- Lewis River suncup
  Camissonia pterosperma (S. Watson) P.H. Raven -- not accepted -- wing-fruit suncup, wingfruit suncup, wingseed suncup
  Camissonia pubens (S. Watson) P.H. Raven -- accepted -- hairy suncup
  Camissonia pusilla P.H. Raven -- accepted -- little wiry suncup
  Camissonia pygmaea (Douglas ex Lehm.) P.H. Raven -- not accepted -- dwarf suncup
  Camissonia refracta (S. Watson) P.H. Raven -- not accepted -- narrow-leaf suncup, narrowleaf suncup
  Camissonia robusta P.H. Raven -- not accepted -- robust suncup
  Camissonia scapoidea (Torr. & A. Gray) P.H. Raven -- not accepted -- barestem eveningprimrose, Paiute suncup, scapoid suncup
  Camissonia scapoidea ssp. brachycarpa (P.H. Raven) P.H. Raven -- not accepted -- Paiute suncup
  Camissonia scapoidea ssp. macrocarpa (P.H. Raven) P.H. Raven -- not accepted -- Paiute suncup
  Camissonia scapoidea ssp. scapoidea (Torr. & A. Gray) P.H. Raven -- not accepted -- Paiute suncup, Seorsa evening primrose, Seorsa eveningprimrose
  Camissonia scapoidea ssp. utahensis (P.H. Raven) P.H. Raven -- not accepted -- Utah suncup
  Camissonia scapoidea var. macrocarpa (P.H. Raven) Cronquist -- not accepted
  Camissonia scapoidea var. utahensis (P.H. Raven) S.L. Welsh -- not accepted
  Camissonia sierrae P.H. Raven -- accepted -- Sierra suncup
  Camissonia sierrae ssp. alticola P.H. Raven -- accepted -- Mono Hot Springs evening primrose, Mono Hot Springs evening-primrose
  Camissonia sierrae ssp. sierrae P.H. Raven -- accepted -- Sierra suncup
  Camissonia specuicola (P.H. Raven) P.H. Raven -- not accepted -- Kaibab suncup
  Camissonia specuicola ssp. hesperia (P.H. Raven) P.H. Raven -- not accepted -- Kaibab suncup
  Camissonia specuicola ssp. specuicola (P.H. Raven) P.H. Raven -- not accepted -- Kaibab suncup
  Camissonia strigulosa (Fisch. & C.A. Mey.) P.H. Raven -- accepted -- sandy-soil suncup, sandysoil suncup
  Camissonia subacaulis (Pursh) P.H. Raven -- not accepted -- diffuseflower evening primrose, diffuseflower evening-primrose, longleaf suncup, northern eveningprimrose
  Camissonia tanacetifolia (Torr. & A. Gray) P.H. Raven -- not accepted -- tansyleaf evening primrose, tansyleaf evening-primrose, tansyleaf suncup
  Camissonia tanacetifolia ssp. quadriperforata P.H. Raven -- not accepted -- Sierra Valley evening primrose, Sierra Valley evening-primrose
  Camissonia tanacetifolia ssp. tanacetifolia (Torr. & A. Gray) P.H. Raven -- not accepted -- tansyleaf evening primrose, tansyleaf evening-primrose, tansyleaf suncup
  Camissonia walkeri (A. Nelson) P.H. Raven -- not accepted -- Walker's suncup
  Camissonia walkeri ssp. tortilis (Jeps.) P.H. Raven -- not accepted -- Walker's suncup
  Camissonia walkeri ssp. walkeri (A. Nelson) P.H. Raven -- not accepted -- Walker's suncup
  Camissoniopsis W.L. Wagner & Hoch -- accepted
  Camissoniopsis bistorta (Nutt. ex Torr. & A. Gray) W.L. Wagner & Hoch -- accepted -- southern suncup
  Camissoniopsis cheiranthifolia (Hornem. ex Spreng.) W.L. Wagner & Hoch -- accepted -- beach suncup
  Camissoniopsis cheiranthifolia ssp. cheiranthifolia (Hornem. ex Spreng.) W.L. Wagner & Hoch -- accepted -- beach suncup
  Camissoniopsis cheiranthifolia ssp. suffruticosa (S. Watson) W.L. Wagner & Hoch -- accepted -- beach suncup
  Camissoniopsis confusa (P.H. Raven) W.L. Wagner & Hoch -- accepted -- San Bernardino suncup
  Camissoniopsis guadalupensis (S. Watson) W.L. Wagner & Hoch -- accepted -- Guadalupe suncup
  Camissoniopsis guadalupensis ssp. clementina (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Clementine suncup
  Camissoniopsis hardhamiae (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Hardham's evening primrose
  Camissoniopsis hirtella (Greene) W.L. Wagner & Hoch -- accepted -- Santa Cruz Island suncup
  Camissoniopsis ignota (Jeps.) W.L. Wagner & Hoch -- accepted -- Jurupa Hills suncup
  Camissoniopsis intermedia (P.H. Raven) W.L. Wagner & Hoch -- accepted -- intermediate suncup
  Camissoniopsis lewisii (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Lewis' evening primrose
  Camissoniopsis luciae (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Santa Lucia suncup
  Camissoniopsis micrantha (Hornem. ex Spreng.) W.L. Wagner & Hoch -- accepted -- miniature suncup
  Camissoniopsis pallida (Abrams) W.L. Wagner & Hoch -- accepted -- paleyellow suncup
  Camissoniopsis pallida ssp. hallii (Davidson) W.L. Wagner & Hoch -- accepted -- Hall's suncup
  Camissoniopsis pallida ssp. pallida (Abrams) W.L. Wagner & Hoch -- accepted -- paleyellow suncup
  Camissoniopsis robusta (P.H. Raven) W.L. Wagner & Hoch -- accepted -- robust suncup
  Chamaenerion angustifolium (L.) Scop. -- not accepted
  Chamaenerion angustifolium ssp. circumvagum (Mosquin) Moldenke -- not accepted
  Chamaenerion latifolium (L.) Sweet -- not accepted
  Chamerion Raf. ex Holub -- accepted -- fireweed
  Chamerion angustifolium (L.) Holub -- accepted -- fireweed
  Chamerion angustifolium ssp. angustifolium (L.) Holub -- accepted -- fireweed, French-willow, great willowherb, rosebay willowherb
  Chamerion angustifolium ssp. circumvagum (Mosquin) Hoch -- accepted -- fireweed
  Chamerion angustifolium var. angustifolium (L.) Holub -- not accepted
  Chamerion angustifolium var. canescens (Alph. Wood) N.H. Holmgren & P.K. Holmgren -- not accepted
  Chamerion danielsii (D. Löve) Czerep. -- not accepted
  Chamerion dodonaei (Vill.) Holub -- accepted
  Chamerion latifolium (L.) Holub -- accepted -- dwarf fireweed
  Chamerion platyphyllum (Daniels) Á. Löve & D. Löve -- not accepted
  Chamerion spicatum (Lam.) Gray -- not accepted
  Chamerion subdentatum (Rydb.) Á. Löve & D. Löve -- not accepted
  Chylismia (Nutt. ex Torr. & A. Gray) Raim. -- accepted
  Chylismia arenaria A. Nelson -- accepted -- Fortuna Range suncup
  Chylismia atwoodii (Cronquist) W.L. Wagner & Hoch -- accepted -- Atwood's evening primrose
  Chylismia brevipes (A. Gray) Small -- accepted -- yellow cups
  Chylismia brevipes ssp. arizonica (P.H. Raven) W.L. Wagner & Hoch -- accepted -- golden suncup
  Chylismia brevipes ssp. brevipes (A. Gray) Small -- accepted -- golden suncup
  Chylismia brevipes ssp. pallidula (Munz) W.L. Wagner & Hoch -- accepted -- pallid suncup
  Chylismia cardiophylla (Torr.) Small -- accepted -- heartleaf suncup
  Chylismia cardiophylla ssp. cardiophylla (Torr.) Small -- accepted -- heartleaf suncup
  Chylismia cardiophylla ssp. robusta (P.H. Raven) W.L. Wagner & Hoch -- accepted -- heartleaf suncup
  Chylismia claviformis (Torr. & Frém.) A. Heller -- accepted -- browneyes
  Chylismia claviformis ssp. aurantiaca (Munz) W.L. Wagner & Hoch -- accepted -- browneyes
  Chylismia claviformis ssp. claviformis (Torr. & Frém.) A. Heller -- accepted -- browneyes
  Chylismia claviformis ssp. cruciformis (Kellogg) W.L. Wagner & Hoch -- accepted -- browneyes
  Chylismia claviformis ssp. funerea (P.H. Raven) W.L. Wagner & Hoch -- accepted -- browneyes
  Chylismia claviformis ssp. integrior (P.H. Raven) W.L. Wagner & Hoch -- accepted -- browneyes
  Chylismia claviformis ssp. lancifolia (A. Heller) W.L. Wagner & Hoch -- accepted -- lanceleaf browneyes
  Chylismia claviformis ssp. peeblesii (Munz) W.L. Wagner & Hoch -- accepted -- Peebles' browneyes
  Chylismia claviformis ssp. peirsonii (Munz) W.L. Wagner & Hoch -- accepted -- Peirson's browneyes
  Chylismia claviformis ssp. rubescens (P.H. Raven) W.L. Wagner & Hoch -- accepted -- browneyes
  Chylismia claviformis ssp. yumae (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Yuma browneyes
  Chylismia confertiflora (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Grand Canyon suncup
  Chylismia eastwoodiae (Munz) W.L. Wagner & Hoch -- accepted -- Grand Junction camissonia
  Chylismia exilis (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Cottonwood Springs suncup
  Chylismia heterochroma (S. Watson) Small -- accepted -- Shockley's evening primrose
  Chylismia lancifolia A. Heller -- not accepted
  Chylismia megalantha (Munz) W.L. Wagner & Hoch -- accepted -- largeflower suncup
  Chylismia multijuga (S. Watson) Small -- accepted -- froststem suncup
  Chylismia munzii (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Death Valley suncup
  Chylismia parryi (S. Watson) Small -- accepted -- redclay suncup
  Chylismia scapoidea (Torr. & A. Gray) Small -- not accepted -- Paiute suncup
  Chylismia scapoidea ssp. brachycarpa (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Paiute suncup
  Chylismia scapoidea ssp. macrocarpa (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Paiute suncup
  Chylismia scapoidea ssp. scapoidea (Torr. & A. Gray) Small -- not accepted -- Paiute suncup
  Chylismia scapoidea ssp. utahensis (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Utah suncup
  Chylismia specicola (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Kaibab suncup
  Chylismia specicola ssp. hesperia (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Kaibab suncup
  Chylismia specicola ssp. specicola (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Kaibab suncup
  Chylismia walkeri A. Nelson -- accepted -- Walker's suncup
  Chylismia walkeri ssp. tortilis (Jeps.) W.L. Wagner & Hoch -- accepted -- Walker's suncup
  Chylismia walkeri ssp. walkeri A. Nelson -- accepted -- Walker's suncup
  Chylismiella (Munz) W.L. Wagner & Hoch -- accepted
  Chylismiella pterosperma (S. Watson) W.L. Wagner & Hoch -- accepted -- wingfruit suncup
  Circaea L. -- accepted -- enchanter's nightshade
  Circaea alpina L. -- accepted -- alpine circaea, small enchanter's nightshade, small enchanter's-nightshade
  Circaea alpina ssp. alpina L. -- accepted -- small enchanter nightshade, small enchanter's nightshade, small enchanter's-nightshade
  Circaea alpina ssp. pacifica (Asch. & Magnus) P.H. Raven -- accepted -- small enchanter nightshade, small enchanter's nightshade
  Circaea alpina var. pacifica (Asch. & Magnus) M.E. Jones -- not accepted
  Circaea canadensis sensu Fernald -- not accepted
  Circaea canadensis (L.) Hill -- accepted -- broadleaf enchanter's nightshade
  Circaea canadensis ssp. canadensis (L.) Hill -- accepted -- broadleaf enchanter's nightshade
  Circaea canadensis var. virginiana Fernald -- not accepted
  Circaea latifolia Hill -- not accepted
  Circaea lutetiana L. -- accepted -- broadleaf enchanter's nightshade
  Circaea lutetiana ssp. canadensis (L.) Asch. & Magnus -- not accepted -- broad-leaf enchanter's-nightshade, broadleaf enchanter's nightshade
  Circaea lutetiana var. canadensis L. -- not accepted
  Circaea pacifica Asch. & Magnus -- not accepted
  Circaea quadrisulcata ssp. canadensis (L.) Á. Löve & D. Löve -- not accepted
  Circaea quadrisulcata var. canadensis (L.) H. Hara -- not accepted
  Circaea X intermedia Ehrh. (pro. sp.) -- accepted -- intermediate enchanter's nightshade
  Clarkia Pursh -- accepted -- fairyfan
  Clarkia affinis F.H. Lewis & M.E. Lewis -- accepted -- chaparral clarkia
  Clarkia amoena (Lehm.) A. Nelson & J.F. Macbr. -- accepted -- farewell to spring
  Clarkia amoena ssp. amoena (Lehm.) A. Nelson & J.F. Macbr. -- accepted -- farewell to spring
  Clarkia amoena ssp. caurina (Abrams ex Piper) F.H. Lewis & M.E. Lewis -- accepted -- farewell to spring
  Clarkia amoena ssp. huntiana (Jeps.) F.H. Lewis & M.E. Lewis -- accepted -- farewell to spring
  Clarkia amoena ssp. lindleyi (Douglas) F.H. Lewis & M.E. Lewis -- accepted -- Lindley's clarkia
  Clarkia amoena ssp. whitneyi (A. Gray) F.H. Lewis & M.E. Lewis -- accepted -- Whitney's clarkia
  Clarkia amoena var. caurina (Abrams ex Piper) C.L. Hitchc. -- not accepted
  Clarkia amoena var. lindleyi (Douglas) C.L. Hitchc. -- not accepted
  Clarkia amoena var. pacifica (M. Peck) C.L. Hitchc. -- not accepted
  Clarkia arcuata (Kellogg) A. Nelson & J.F. Macbr. -- accepted -- glandular clarkia
  Clarkia australis E. Small -- accepted -- Small's southern clarkia
  Clarkia biloba (Durand) A. Nelson & J.F. Macbr. -- accepted -- twolobe clarkia
  Clarkia biloba ssp. australis F.H. Lewis & M.E. Lewis -- accepted -- Mariposa clarkia
  Clarkia biloba ssp. biloba (Durand) A. Nelson & J.F. Macbr. -- accepted -- twolobe clarkia
  Clarkia biloba ssp. brandegeeae (Jeps.) F.H. Lewis & M.E. Lewis -- accepted -- Brandegee's clarkia
  Clarkia borealis E. Small -- accepted -- northern clarkia
  Clarkia borealis ssp. arida E. Small -- accepted -- arid northern clarkia, Shasta clarkia
  Clarkia borealis ssp. borealis E. Small -- accepted -- northern clarkia
  Clarkia bottae (Spach) F.H. Lewis & M.E. Lewis -- accepted -- Botta's clarkia
  Clarkia breweri (A. Gray) Greene -- accepted -- fairy fans
  Clarkia calientensis Vasek -- not accepted
  Clarkia concinna (Fisch. & C.A. Mey.) Greene -- accepted -- red ribbons
  Clarkia concinna ssp. automixa R.N. Bowman -- accepted -- East Bay clarkia, red ribbons
  Clarkia concinna ssp. concinna (Fisch. & C.A. Mey.) Greene -- accepted -- red ribbons
  Clarkia concinna ssp. raichei G.A. Allen, V.S. Ford & Gottlieb -- accepted -- Raiche's clarkia, Tomales clarkia
  Clarkia cylindrica (Jeps.) F.H. Lewis & M.E. Lewis -- accepted -- speckled clarkia
  Clarkia cylindrica ssp. clavicarpa W.S. Davis -- accepted -- speckled clarkia
  Clarkia cylindrica ssp. cylindrica (Jeps.) F.H. Lewis & M.E. Lewis -- accepted -- speckled clarkia
  Clarkia davyi (Jeps.) F.H. Lewis & M.E. Lewis -- accepted -- Davy's clarkia
  Clarkia deflexa (Jeps.) F.H. Lewis & M.E. Lewis -- not accepted
  Clarkia delicata (Abrams) A. Nelson & J.F. Macbr. -- accepted -- Campo clarkia
  Clarkia dudleyana (Abrams) J.F. Macbr. -- accepted -- Dudley's clarkia
  Clarkia elegans Douglas -- not accepted
  Clarkia epilobioides (Nutt. ex Torr. & A. Gray) A. Nelson & J.F. Macbr. -- accepted -- canyon clarkia, canyon fairyfan
  Clarkia exilis F.H. Lewis & Vasek -- accepted -- Kern River clarkia
  Clarkia franciscana F.H. Lewis & P.H. Raven -- accepted -- Presidio clarkia
  Clarkia gracilis (Piper) A. Nelson & J.F. Macbr. -- accepted -- slender clarkia
  Clarkia gracilis ssp. albicaulis (Jeps.) F.H. Lewis & M.E. Lewis -- accepted -- whitestem clarkia
  Clarkia gracilis ssp. gracilis (Piper) A. Nelson & J.F. Macbr. -- accepted -- slender clarkia
  Clarkia gracilis ssp. sonomensis (C.L. Hitchc.) F.H. Lewis & M.E. Lewis -- accepted -- Sonoma clarkia
  Clarkia gracilis ssp. tracyi (Jeps.) Abdel-Hameed & R. Snow -- accepted -- Tracy's clarkia
  Clarkia heterandra (Torr.) F.H. Lewis & P.H. Raven -- accepted -- mountain clarkia
  Clarkia imbricata F.H. Lewis & M.E. Lewis -- accepted -- Vine Hill clarkia
  Clarkia jolonensis D.R. Parn. -- accepted -- Jolon clarkia
  Clarkia lassenensis (Eastw.) F.H. Lewis & M.E. Lewis -- accepted -- Lassen clarkia, Mt. Lassen clarkia
  Clarkia lewisii P.H. Raven & D.R. Parn. -- accepted -- Lewis' clarkia
  Clarkia lingulata F.H. Lewis & M.E. Lewis -- accepted -- Merced clarkia
  Clarkia mildrediae (A. Heller) F.H. Lewis & M.E. Lewis -- accepted -- Mildred's clarkia
  Clarkia mildrediae ssp. lutescens Gottlieb & L.P. Janeway -- accepted -- Mildred's clarkia
  Clarkia mildrediae ssp. mildrediae (A. Heller) F.H. Lewis & M.E. Lewis -- accepted -- Mildred's clarkia
  Clarkia modesta Jeps. -- accepted -- Waltham Creek clarkia
  Clarkia mosquinii E. Small -- accepted -- Mosquin's clarkia
  Clarkia mosquinii ssp. mosquinii E. Small -- not accepted -- Mosquin's clarkia, Mosquin's fairyfan
  Clarkia mosquinii ssp. xerophila E. Small -- not accepted -- Enterprise clarkia
  Clarkia nitens F.H. Lewis & M.E. Lewis -- not accepted
  Clarkia parviflora Eastw. -- not accepted
  Clarkia prostrata F.H. Lewis & M.E. Lewis -- accepted -- prostrate clarkia
  Clarkia pulchella Pursh -- accepted -- pinkfairies
  Clarkia purpurea (W. Curtis) A. Nelson & J.F. Macbr. -- accepted -- winecup clarkia, winecup fairyfan
  Clarkia purpurea ssp. purpurea (W. Curtis) A. Nelson & J.F. Macbr. -- accepted -- winecup clarkia
  Clarkia purpurea ssp. quadrivulnera (Douglas) F.H. Lewis & M.E. Lewis -- accepted -- winecup clarkia, winecup fairyfan
  Clarkia purpurea ssp. viminea (Douglas) F.H. Lewis & M.E. Lewis -- accepted -- winecup clarkia
  Clarkia quadrivulnera (Douglas) A. Nelson & J.F. Macbr. -- not accepted
  Clarkia rhomboidea Douglas ex Hook. -- accepted -- broadleaf clarkia, diamond clarkia, diamond fairyfan
  Clarkia rostrata W.S. Davis -- accepted -- beaked clarkia
  Clarkia rubicunda (Lindl.) F.H. Lewis & M.E. Lewis -- accepted -- ruby chalice clarkia
  Clarkia rubicunda ssp. blasdalei (Jeps.) F.H. Lewis & M.E. Lewis -- not accepted
  Clarkia similis F.H. Lewis & W.R. Ernst -- accepted -- Ramona clarkia
  Clarkia speciosa F.H. Lewis & M.E. Lewis -- accepted -- redspot clarkia
  Clarkia speciosa ssp. immaculata F.H. Lewis & M.E. Lewis -- accepted -- Pismo clarkia
  Clarkia speciosa ssp. nitens (F.H. Lewis & M.E. Lewis) F.H. Lewis & P.H. Raven -- accepted -- redspot clarkia
  Clarkia speciosa ssp. polyantha F.H. Lewis & M.E. Lewis -- accepted -- redspot clarkia
  Clarkia speciosa ssp. speciosa F.H. Lewis & M.E. Lewis -- accepted -- redspot clarkia
  Clarkia springvillensis Vasek -- accepted -- Springville clarkia
  Clarkia stellata Mosquin -- accepted -- Lake Almanor clarkia
  Clarkia tembloriensis Vasek -- accepted -- Temblor Range clarkia
  Clarkia tembloriensis ssp. calientensis (Vasek) K.E. Hols. -- accepted -- Vasek's clarkia
  Clarkia tembloriensis ssp. tembloriensis Vasek -- accepted -- Temblor Range clarkia
  Clarkia unguiculata Lindl. -- accepted -- elegant clarkia
  Clarkia viminea (Douglas) A. Nelson & J.F. Macbr. -- not accepted
  Clarkia virgata Greene -- accepted -- Sierra clarkia
  Clarkia williamsonii (Durand & Hilg.) F.H. Lewis & M.E. Lewis -- accepted -- Fort Miller clarkia
  Clarkia xantiana A. Gray -- accepted -- gunsight clarkia
  Clarkia xantiana ssp. parviflora (Eastw.) F.H. Lewis & P.H. Raven -- accepted -- Kern Canyon clarkia
  Clarkia xantiana ssp. xantiana A. Gray -- accepted -- gunsight clarkia
  Clylismia walkeri A. Nelson -- not accepted
  Epilobium L. -- accepted -- willow weed, willowherb, willowweed
  Epilobium adenocaulon Hausskn. -- not accepted
  Epilobium adenocaulon var. cinerascens (Piper) M. Peck -- not accepted
  Epilobium adenocaulon var. ecomosum (Fassett) Munz -- not accepted
  Epilobium adenocaulon var. holosericeum (Trel.) Munz -- not accepted
  Epilobium adenocaulon var. occidentale Trel. -- not accepted
  Epilobium adenocaulon var. parishii (Trel.) Munz -- not accepted
  Epilobium adenocaulon var. perplexans Trel. -- not accepted
  Epilobium alpinum L. -- not accepted
  Epilobium alpinum var. albiflorum (Suksd.) C.L. Hitchc. -- not accepted
  Epilobium alpinum var. clavatum (Trel.) C.L. Hitchc. -- not accepted
  Epilobium alpinum var. gracillimum (Trel.) C.L. Hitchc. -- not accepted
  Epilobium alpinum var. lactiflorum (Hausskn.) C.L. Hitchc. -- not accepted
  Epilobium alpinum var. nutans Hornem. -- not accepted
  Epilobium alpinum var. sertulatum (Hausskn.) S.L. Welsh -- not accepted
  Epilobium alsinifolium Vill. -- accepted -- water plantain willowherb
  Epilobium americanum Hausskn. -- not accepted
  Epilobium anagallidifolium Lam. -- accepted -- alpine willowherb, alpine willowweed, pimpernel willowherb
  Epilobium anagallidifolium var. pseudoscaposum (Hausskn.) Hultén -- not accepted
  Epilobium angustifolium L. -- not accepted -- blooming sally, fireweed, French-willow, great willowherb, rosebay willowherb, willowherb
  Epilobium angustifolium ssp. angustifolium L. -- not accepted -- fireweed
  Epilobium angustifolium ssp. circumvagum Mosquin -- not accepted -- fireweed
  Epilobium angustifolium ssp. macrophyllum (Hausskn.) Hultén -- not accepted
  Epilobium angustifolium var. abbreviatum (Lunell) Munz -- not accepted
  Epilobium angustifolium var. canescens Alph. Wood -- not accepted
  Epilobium angustifolium var. intermedium (Lange) Fernald -- not accepted
  Epilobium angustifolium var. macrophyllum (Hausskn.) Fernald -- not accepted
  Epilobium angustifolium var. platyphyllum (Daniels) Fernald -- not accepted
  Epilobium angustissimum Weber -- not accepted
  Epilobium arcticum Sam. -- accepted -- arctic willowherb, épilobe arctique
  Epilobium behringianum Hausskn. -- not accepted
  Epilobium billardieranum Ser. -- not accepted
  Epilobium billardieranum var. billardieranum Ser. -- not accepted
  Epilobium billardieranum var. cinereum (A. Rich.) P.H. Raven & Engelhorn -- not accepted
  Epilobium billardierianum Ser. -- accepted -- aboriginal willowherb
  Epilobium billardierianum ssp. billardierianum Ser. -- accepted
  Epilobium billardierianum ssp. cinereum (A. Rich.) P.H. Raven & Engelhorn -- accepted -- aboriginal willowherb
  Epilobium boreale Hausskn. -- not accepted
  Epilobium brachycarpum C. Presl -- accepted -- autumn willowherb, autumn willowweed, tall annual willowherb
  Epilobium brevistylum Barbey -- not accepted
  Epilobium brevistylum var. subfalcatum (Trel.) Munz -- not accepted
  Epilobium brevistylum var. tenue (Trel.) Jeps. -- not accepted
  Epilobium brevistylum var. ursinum (Parish ex Trel.) Jeps. -- not accepted
  Epilobium californicum Hausskn. -- not accepted
  Epilobium californicum var. holosericeum (Trel.) Jeps. -- not accepted
  Epilobium campestre (Jeps.) Hoch & W.L. Wagner -- accepted -- smooth spike-primrose
  Epilobium canum (Greene) P.H. Raven -- accepted -- hummingbird trumpet, hummingbird-trumpet
  Epilobium canum ssp. angustifolium (D.D. Keck) P.H. Raven -- accepted -- hummingbird trumpet
  Epilobium canum ssp. canum (Greene) P.H. Raven -- accepted -- hummingbird trumpet
  Epilobium canum ssp. garrettii (A. Nelson) P.H. Raven -- accepted -- Garrett's firechalice
  Epilobium canum ssp. latifolium (Hook.) P.H. Raven -- accepted -- hummingbird trumpet
  Epilobium canum ssp. mexicanum (C. Presl) P.H. Raven -- not accepted
  Epilobium canum ssp. septentrionale (D.D. Keck) P.H. Raven -- not accepted
  Epilobium canum var. garrettii (A. Nelson) N.H. Holmgren & P.K. Holmgren -- not accepted
  Epilobium canum var. latifolium (Hook.) N.H. Holmgren & P.K. Holmgren -- not accepted
  Epilobium ciliatum Raf. -- accepted -- fringed willowherb, hairy willowherb, hairy willowweed
  Epilobium ciliatum ssp. ciliatum Raf. -- accepted -- coast willowweed, fringed willowherb
  Epilobium ciliatum ssp. glandulosum (Lehm.) Hoch & P.H. Raven -- accepted -- fringed willowherb, glandular willowherb, glandular willowweed
  Epilobium ciliatum ssp. watsonii (Barbey) Hoch & P.H. Raven -- accepted -- fringed willowherb
  Epilobium ciliatum var. ecomosum (Fassett) B. Boivin -- not accepted -- hairy willow-herb
  Epilobium ciliatum var. glandulosum (Lehm.) Dorn -- not accepted
  Epilobium cinereum A. Rich. -- not accepted
  Epilobium clavatum Trel. -- accepted -- clavatefruit willowweed, clubfruit willowherb, talus willowherb
  Epilobium clavatum var. glareosum (G.N. Jones) Munz -- not accepted
  Epilobium cleistogamum (Curran) Hoch & P.H. Raven -- accepted -- selfing willowherb
  Epilobium coloratum Biehler -- accepted -- purple-leaf willowherb, purpleleaf willowherb, willowweed
  Epilobium davuricum Fisch. ex Hornem. -- accepted -- Dahurian willowherb
  Epilobium davuricum var. arcticum (Sam.) Polunin -- not accepted
  Epilobium delicatum Trel. -- not accepted
  Epilobium densiflorum (Lindl.) Hoch & P.H. Raven -- accepted -- dense-flower spike-primrose, denseflower willowherb, denseflower willowweed
  Epilobium densum Raf. -- not accepted
  Epilobium dodonaei Vill. -- not accepted
  Epilobium drummondii Hausskn. -- not accepted
  Epilobium ecomosum (Fassett) Fernald -- not accepted
  Epilobium exaltatum Drew -- not accepted
  Epilobium foliosum (Torr. & A. Gray) Suksd. -- accepted -- California willowherb, leafy willowherb
  Epilobium franciscanum Barbey -- not accepted
  Epilobium glaberrimum Barbey -- accepted -- glaucus willowherb, smooth willowweed
  Epilobium glaberrimum ssp. fastigiatum (Nutt.) Hoch & P.H. Raven -- accepted -- glaucus willowherb, smooth willowweed
  Epilobium glaberrimum ssp. glaberrimum Barbey -- accepted -- glaucus willowherb, smooth willowweed
  Epilobium glaberrimum var. fastigiatum (Nutt.) Trel. ex Jeps. -- not accepted
  Epilobium glandulosum Lehm. -- not accepted
  Epilobium glandulosum var. adenocaulon (Hausskn.) Fernald -- not accepted
  Epilobium glandulosum var. brionense Fernald -- not accepted
  Epilobium glandulosum var. cardiophyllum Fernald -- not accepted
  Epilobium glandulosum var. ecomosum Fassett -- not accepted
  Epilobium glandulosum var. macounii (Trel.) C.L. Hitchc. -- not accepted
  Epilobium glandulosum var. occidentale (Trel.) Fernald -- not accepted
  Epilobium glandulosum var. tenue (Trel.) C.L. Hitchc. -- not accepted
  Epilobium glareosum G.N. Jones -- not accepted
  Epilobium halleanum Hausskn. -- accepted -- glandular willowherb, Hall's willowweed
  Epilobium hirsutum L. -- accepted -- codlins and cream, hairy willow herb
  Epilobium hornemannii Rchb. -- accepted -- Hornemann's willowherb, Hornemann's willowweed
  Epilobium hornemannii ssp. behringianum (Hausskn.) Hoch & P.H. Raven -- accepted -- Hornemann's willowherb
  Epilobium hornemannii ssp. hornemannii Rchb. -- accepted -- Hornemann's willowherb
  Epilobium hornemannii var. lactiflorum (Hausskn.) D. Löve -- not accepted
  Epilobium howellii Hoch -- accepted -- Yuba Pass willowherb
  Epilobium lactiflorum Hausskn. -- accepted -- broadleaf willowweed, milkflower willowherb, white-flower willowherb
  Epilobium latifolium L. -- not accepted -- dwarf fireweed
  Epilobium leptocarpum Hausskn. -- accepted -- slenderfruit willowherb
  Epilobium leptocarpum var. macounii Trel. -- not accepted
  Epilobium leptophyllum Raf. -- accepted -- bog willowherb, linearleaf willowweed
  Epilobium lineare Muhl. -- not accepted
  Epilobium luteum Pursh -- accepted -- yellow willowherb
  Epilobium minutum Lindl. ex Lehm. -- accepted -- chaparral willowherb, minute willowweed
  Epilobium minutum var. foliosum Torr. & A. Gray -- not accepted
  Epilobium mirabile Trel. ex Piper -- accepted -- Olympic Mountain willowherb
  Epilobium montanum L. -- accepted
  Epilobium nesophilum (Fernald) Fernald -- not accepted
  Epilobium nesophilum var. sabulonense Fernald -- not accepted
  Epilobium nevadense Munz -- accepted -- Nevada willowherb, Nevada willowweed
  Epilobium nivium Brandegee -- accepted -- Snow Mountain willowherb
  Epilobium obcordatum A. Gray -- accepted -- rockfringe, rose willowweed
  Epilobium obcordatum ssp. siskiyouense Munz -- not accepted
  Epilobium obcordatum var. laxum (Hausskn.) Dempster ex Jeps. -- not accepted
  Epilobium obscurum Schreb. -- accepted -- dwarf willowherb
  Epilobium oliganthum Michx. -- not accepted
  Epilobium oreganum Greene -- accepted -- Grants Pass willowherb, Oregon fireweed
  Epilobium oregonense Hausskn. -- accepted -- Oregon willowherb, Oregon willowweed
  Epilobium pallidum (Eastw.) Hoch & P.H. Raven -- accepted -- largeflower spike-primrose
  Epilobium palustre L. -- accepted -- marsh willowherb, marsh willowweed
  Epilobium palustre var. davuricum (Fisch. ex Hornem.) S.L. Welsh -- not accepted
  Epilobium palustre var. gracile (Farw.) Dorn -- not accepted
  Epilobium palustre var. grammadophyllum Hausskn. -- not accepted
  Epilobium palustre var. labradoricum Hausskn. -- not accepted
  Epilobium palustre var. lapponicum Wahlenb. -- not accepted
  Epilobium palustre var. longirameum Fernald & Wiegand -- not accepted
  Epilobium palustre var. oliganthum (Michx.) Fernald -- not accepted
  Epilobium palustre var. sabulonense (Fernald) B. Boivin -- not accepted
  Epilobium paniculatum Nutt. ex Torr. & A. Gray -- not accepted
  Epilobium paniculatum var. hammondii (Howell) M. Peck -- not accepted
  Epilobium paniculatum var. juncundum (A. Gray) Trel. -- not accepted
  Epilobium paniculatum var. laevicaule (Rydb.) Munz -- not accepted
  Epilobium paniculatum var. paniculatum Nutt. ex Torr. & A. Gray -- not accepted
  Epilobium paniculatum var. subulatum (Hausskn.) Fernald -- not accepted
  Epilobium paniculatum var. tracyi (Rydb.) Munz -- not accepted
  Epilobium parviflorum Schreb. -- accepted -- smallflower hairy willowherb
  Epilobium platyphyllum Rydb. -- not accepted
  Epilobium pringleanum Hausskn. -- not accepted
  Epilobium pringleanum var. tenue (Trel.) Munz -- not accepted
  Epilobium pygmaeum (Speg.) Hoch & P.H. Raven -- not accepted -- smooth spike-primrose, smooth willowweed
  Epilobium pylaieanum Fernald -- not accepted
  Epilobium rigidum Hausskn. -- accepted -- Rocky Mountain willowherb, stiff willowherb
  Epilobium rigidum var. canescens Trel. -- not accepted
  Epilobium rosmarinifolium Pursh -- not accepted
  Epilobium saximontanum Hausskn. -- accepted -- Rocky Mountain willowherb, Rocky Mountain willowweed
  Epilobium scalare Fernald -- not accepted
  Epilobium septentrionale (D.D. Keck) R.N. Bowman & Hoch -- accepted -- northern willowherb
  Epilobium sertulatum Hausskn. -- not accepted
  Epilobium siskiyouense (Munz) Hoch & P.H. Raven -- accepted -- Siskiyou rock-fringe, Siskiyou willowherb
  Epilobium smithii H. Lév. -- accepted
  Epilobium spicatum Lam. -- not accepted
  Epilobium steckerianum Fernald -- not accepted
  Epilobium strictum Muhl. -- accepted -- downy willowherb
  Epilobium suffruticosum Nutt. -- accepted -- shrubby willowherb
  Epilobium torreyi (S. Watson) Hoch & P.H. Raven -- accepted -- narrowleaf willowweed, Torrey's willowherb
  Epilobium treleaseanum H. Lév. -- not accepted
  Epilobium ursinum Parish ex Trel. -- not accepted
  Epilobium watsoni Barbey -- not accepted
  Epilobium watsonii Barbey -- not accepted
  Epilobium watsonii var. franciscanum (Barbey) Jeps. -- not accepted
  Epilobium watsonii var. occidentale (Trel.) C.L. Hitchc. -- not accepted
  Epilobium watsonii var. parishii (Trel.) C.L. Hitchc. -- not accepted
  Epilobium wyomingense A. Nelson -- not accepted
  Epilobium X pulchrum Suksd. (pro. sp.) -- accepted
  Epilobium X treleaseanum H. Lév. -- not accepted
  Epilobium X treleasianum H. Lév. -- accepted
  Epilobium X wisconsinense Ugente -- accepted -- Wisconsin willowherb
  Eremothera (P.H. Raven) W.L. Wagner & Hoch -- accepted
  Eremothera boothii (Douglas) W.L. Wagner & Hoch -- accepted -- Booth's evening primrose
  Eremothera boothii ssp. alyssoides (Hook. & Arn.) W.L. Wagner & Hoch -- accepted -- alyssum evening primrose
  Eremothera boothii ssp. boothii (Douglas) W.L. Wagner & Hoch -- accepted -- Booth's suncup
  Eremothera boothii ssp. condensata (Munz) W.L. Wagner & Hoch -- accepted -- shredding suncup
  Eremothera boothii ssp. decorticans (Hook. & Arn.) W.L. Wagner & Hoch -- accepted -- shredding suncup
  Eremothera boothii ssp. desertorum (Munz) W.L. Wagner & Hoch -- accepted -- desert suncup
  Eremothera boothii ssp. intermedia (Munz) W.L. Wagner & Hoch -- accepted -- Booth's evening primrose
  Eremothera chamaenerioides (A. Gray) W.L. Wagner & Hoch -- accepted -- longcapsule suncup
  Eremothera gouldii (P.H. Raven) W.L. Wagner & Hoch -- accepted -- Diamond Valley suncup
  Eremothera minor (A. Nelson) W.L. Wagner & Hoch -- accepted -- small evening primrose
  Eremothera nevadensis (Kellogg) W.L. Wagner & Hoch -- accepted -- Nevada suncup
  Eremothera pygmaea (Douglas) W.L. Wagner & Hoch -- accepted -- dwarf suncup
  Eremothera refracta (S. Watson) W.L. Wagner & Hoch -- accepted -- narrowleaf suncup
  Eulobus Nutt. ex Torr. & A. Gray -- accepted
  Eulobus californicus Nutt. ex Torr. & A. Gray -- accepted -- California suncup
  Fuchsia L. -- accepted -- fuchsia
  Fuchsia andrei I.M. Johnst. -- accepted -- Andre's fuchsia
  Fuchsia arborescens Sims -- accepted -- aretillo
  Fuchsia boliviana Carričre -- accepted -- Bolivian fuchsia
  Fuchsia gracilis Lindl. -- not accepted
  Fuchsia hybrida hort. ex Siebold & Voss -- accepted -- hybrid fuchsia
  Fuchsia macrostema Ruiz & Pav. -- not accepted
  Fuchsia magellanica Lam. -- accepted -- hardy fuchsia
  Fuchsia magellanica var. macrostema (Ruiz & Pav.) Munz -- not accepted
  Fuchsia paniculata Lindl. -- accepted -- shrubby fuchsia
  Fuchsia vulcanica André -- not accepted -- Volcan's fuchsia
  Galpinsia camporum Wooton & Standl. -- not accepted
  Galpinsia hartwegii (Benth.) Britton -- not accepted
  Galpinsia interior Small -- not accepted
  Galpinsia lavandulifolia (Torr. & A. Gray) Small -- not accepted
  Galpinsia toumeyi Small -- not accepted
  Gaura L. -- not accepted -- beeblossom
  Gaura angustifolia Michx. -- not accepted -- southern beeblossom
  Gaura biennis L. -- not accepted -- biennial beeblossom
  Gaura biennis var. pitcheri Torr. & A. Gray -- not accepted
  Gaura boquillensis P.H. Raven & D.P. Greg. -- not accepted -- Rio Grande beeblossom
  Gaura brachycarpa Small -- not accepted -- plains beeblossom
  Gaura calcicola P.H. Raven & D.P. Greg. -- not accepted -- Texas beeblossom
  Gaura coccinea Nutt. ex Pursh -- not accepted -- scarlet beeblossom, scarlet gaura, Scarlet guara
  Gaura coccinea var. arizonica Munz -- not accepted
  Gaura coccinea var. epilobioides (Kunth) Munz -- not accepted
  Gaura coccinea var. glabra (Lehm.) Munz -- not accepted
  Gaura coccinea var. parvifolia (Torr.) Rickett -- not accepted
  Gaura coccinea var. typica Munz -- not accepted
  Gaura decorticans Hook. & Arn. -- not accepted
  Gaura demareei P.H. Raven & D.P. Greg. -- not accepted -- Demaree's beeblossom
  Gaura drummondii (Spach) Torr. & A. Gray -- not accepted -- Drummond's beeblossom, scented gaura
  Gaura eatonii Small -- not accepted
  Gaura filiformis Small -- not accepted
  Gaura filipes Spach -- not accepted -- slenderstalk beeblossom
  Gaura filipes var. major Torr. & A. Gray -- not accepted
  Gaura glabra Lehm. -- not accepted
  Gaura gracilis Wooton & Standl. -- not accepted
  Gaura gracilis var. typica Munz -- not accepted
  Gaura heterandra Torr. -- not accepted
  Gaura hexandra Ortega -- not accepted -- Harlequin-bush, harlequinbush, slender gaura
  Gaura hexandra ssp. gracilis (Wooton & Standl.) P.H. Raven & D.P. Greg. -- not accepted -- Harlequin bush, harlequinbush
  Gaura hexandra ssp. hexandra Ortega -- not accepted -- harlequinbush
  Gaura hexandra var. coryi (Munz) Munz -- not accepted
  Gaura hexandra var. hexandra Ortega -- not accepted
  Gaura hexandra var. triangulata (Buckley) Munz -- not accepted
  Gaura lindheimeri Engelm. & A. Gray -- not accepted -- Lindheimer's beeblossom, white gaura
  Gaura longiflora Spach -- not accepted -- longflower beeblossom
  Gaura ludoviciana P.H. Raven & D.P. Greg. -- not accepted -- Louisiana beeblossom
  Gaura macrocarpa Rothr. -- not accepted -- Trans-Pecos beeblossom
  Gaura mckelveyae (Munz) P.H. Raven & D.P. Greg. -- not accepted -- Mckelvey's beeblossom
  Gaura michauxii Spach -- not accepted
  Gaura mollis James -- not accepted -- velvetweed
  Gaura nealleyi J.M. Coult. -- not accepted
  Gaura neomexicana Wooton -- not accepted -- New Mexico beeblossom
  Gaura neomexicana ssp. coloradensis (Rydb.) P.H. Raven & D.P. Greg. -- not accepted -- Colorado beeblossom, Colorado butterfly plant
  Gaura neomexicana ssp. neomexicana Wooton -- not accepted -- New Mexico beeblossom
  Gaura neomexicana var. coloradensis (Rydb.) Munz -- not accepted -- Colorado butterfly plant
  Gaura neomexicana var. typica Munz -- not accepted
  Gaura odorata Sessé ex Lag. -- not accepted
  Gaura parviflora Douglas ex Lehm. -- not accepted -- smallflowered gaura, velvetweed, velvety gaura, willow gaura
  Gaura parviflora var. lachnocarpa Weath. -- not accepted
  Gaura parviflora var. typica Munz -- not accepted
  Gaura pitcheri (Torr. & A. Gray) Small -- not accepted
  Gaura simulans Small -- not accepted
  Gaura sinuata Nutt. ex Ser. -- not accepted -- wavyleaf beeblossom, wavyleaf gaura
  Gaura suffulta Engelm. -- not accepted -- kisses, roadside gaura
  Gaura suffulta ssp. nealleyi (J.M. Coult.) P.H. Raven & D.P. Greg. -- not accepted -- Nealley's kisses
  Gaura suffulta ssp. suffulta Engelm. -- not accepted -- kisses
  Gaura triangulata Buckley -- not accepted -- prairie beeblossom, threepetal gaura
  Gaura tripetala Cav. -- not accepted
  Gaura tripetala var. coryi Munz -- not accepted
  Gaura tripetala var. triangulata (Buckley) Munz -- not accepted
  Gaura villosa Torr. -- not accepted -- woolly beeblossom, woolly gaura
  Gaura villosa ssp. parksii (Munz) P.H. Raven & D.P. Greg. -- not accepted -- hairy gaura, Parks' beeblossom
  Gaura villosa ssp. villosa Torr. -- not accepted -- woolly beeblossom
  Gaura villosa var. arenicola Munz -- not accepted
  Gaura villosa var. mckelveyae Munz -- not accepted
  Gaura villosa var. parksii Munz -- not accepted
  Gaura villosa var. typica Munz -- not accepted
  Gaurella canescens (Torr. & Frém.) A. Nelson -- not accepted
  Gayophytum A. Juss. -- accepted -- groundsmoke
  Gayophytum decipiens F.H. Lewis & Szweyk. -- accepted -- deceptive groundsmoke
  Gayophytum diffusum Torr. & A. Gray -- accepted -- bigflower groundsmoke, spreading groundsmoke
  Gayophytum diffusum ssp. diffusum Torr. & A. Gray -- accepted -- spreading groundsmoke
  Gayophytum diffusum ssp. parviflorum F.H. Lewis & Szweyk. -- accepted -- spreading groundsmoke
  Gayophytum diffusum var. strictipes (Hook.) Dorn -- not accepted
  Gayophytum diffusum var. villosum Munz -- not accepted
  Gayophytum eriospermum Coville -- accepted -- Coville's groundsmoke
  Gayophytum helleri Rydb. -- not accepted
  Gayophytum helleri var. erosulatum Jeps. -- not accepted
  Gayophytum helleri var. glabrum Munz -- not accepted
  Gayophytum heterozygum F.H. Lewis & Szweyk. -- accepted -- dwarf groundsmoke, zigzag groundsmoke
  Gayophytum humile Juss. -- accepted -- dwarf groundsmoke, low groundsmoke
  Gayophytum humile var. hirtellum Munz -- not accepted
  Gayophytum intermedium Rydb. -- not accepted
  Gayophytum lasiospermum Greene -- not accepted
  Gayophytum lasiospermum var. hoffmannii Munz -- not accepted
  Gayophytum nuttallii Torr. & A. Gray -- not accepted
  Gayophytum nuttallii var. abramsii Munz -- not accepted
  Gayophytum nuttallii var. intermedium (Rydb.) Munz -- not accepted
  Gayophytum oligospermum F.H. Lewis & Szweyk. -- accepted -- pinegrove groundsmoke
  Gayophytum racemosum Torr. & A. Gray -- accepted -- black-foot groundsmoke, blackfoot groundsmoke
  Gayophytum racemosum var. caesium (Torr. & A. Gray) Munz -- not accepted
  Gayophytum ramosissimum Torr. & A. Gray -- accepted -- muchbranched groundsmoke, pinyon groundsmoke
  Gayophytum ramosissimum var. strictipes Hook. -- not accepted
  Gayophytum strictum A. Gray -- not accepted
  Godetia amoena (Lehm.) G. Don -- not accepted
  Godetia amoena var. albicaulis Jeps. -- not accepted
  Godetia amoena var. concolor Jeps. -- not accepted
  Godetia amoena var. gracilis C.L. Hitchc. -- not accepted
  Godetia amoena var. sonomensis C.L. Hitchc. -- not accepted
  Godetia biloba (Durand) S. Watson -- not accepted
  Godetia bottae Spach -- not accepted
  Godetia bottae var. deflexa (Jeps.) C.L. Hitchc. -- not accepted
  Godetia cylindrica (Jeps.) C.L. Hitchc. -- not accepted
  Godetia cylindrica var. tracyi Jeps. -- not accepted
  Godetia dudleyana Abrams -- not accepted
  Godetia dudleyana var. brandegeeae (Jeps.) Jeps. -- not accepted
  Godetia epilobioides (Nutt. ex Torr. & A. Gray) S. Watson -- not accepted
  Godetia hispidula S. Watson -- not accepted
  Godetia lassenensis Eastw. -- not accepted
  Godetia pacifica M. Peck -- not accepted
  Godetia parviflora (Hook. & Arn.) Jeps. -- not accepted
  Godetia parviflora var. luteola C.L. Hitchc. -- not accepted
  Godetia parviflora var. margaritiae C.L. Hitchc. -- not accepted
  Godetia purpurea (Curtis) G. Don -- not accepted
  Godetia purpurea var. parviflora (S. Watson) C.L. Hitchc. -- not accepted
  Godetia quadrivulnera (Douglas) Spach -- not accepted
  Godetia quadrivulnera var. davyi Jeps. -- not accepted
  Godetia quadrivulnera var. vacensis Jeps. -- not accepted
  Godetia viminea (Douglas) Spach -- not accepted
  Godetia viminea var. congdonii Jeps. -- not accepted
  Godetia viminea var. incerta Jeps. -- not accepted
  Godetia whitneyi (A. Gray) T. Moore -- not accepted
  Hartmannia speciosa (Nutt.) Small -- not accepted
  Heterogaura Rothr. -- not accepted
  Heterogaura heterandra (Torr.) Coville -- not accepted
  Holmgrenia W.L. Wagner & Hoch -- not accepted
  Holmgrenia andina (Nutt.) W.L. Wagner & Hoch -- not accepted -- Blackfoot River evening primrose
  Holmgrenia hilgardii (Greene) W.L. Wagner & Hoch -- not accepted -- Hilgard's suncup
  Isnardia intermedia Small & Alexander -- not accepted
  Isnardia palustris L. -- not accepted
  Isnardia repens DC. -- not accepted
  Isnardia spathulata (Torr. & A. Gray) Small -- not accepted
  Jussiaea L. -- not accepted
  Jussiaea angustifolia Lam. -- not accepted
  Jussiaea clavata (C. Presl) M.E. Jones -- not accepted
  Jussiaea decurrens (Walter) DC. -- not accepted
  Jussiaea diffusa auct. non Forssk. -- not accepted
  Jussiaea erecta L. -- not accepted
  Jussiaea grandiflora Michx. -- not accepted
  Jussiaea leptocarpa Nutt. -- not accepted
  Jussiaea michauxiana Fernald -- not accepted
  Jussiaea neglecta Small -- not accepted
  Jussiaea octofila DC. -- not accepted
  Jussiaea peploides Kunth -- not accepted
  Jussiaea peruviana L. -- not accepted
  Jussiaea repens L. -- not accepted
  Jussiaea repens var. glabrescens Kuntze -- not accepted
  Jussiaea repens var. grandiflora (Michx.) Micheli -- not accepted
  Jussiaea repens var. montevidensis (Spreng.) Munz -- not accepted
  Jussiaea repens var. peploides (Kunth) Griseb. -- not accepted
  Jussiaea scabra Willd. -- not accepted
  Jussiaea subacaulis Pursh -- not accepted
  Jussiaea suffruticosa var. octofila (DC.) Munz -- not accepted
  Jussiaea uruguayensis Cambess. -- not accepted
  Kneiffia allenii (Britton) Small -- not accepted
  Kneiffia arenicola Small -- not accepted
  Kneiffia brevistipata Pennell -- not accepted
  Kneiffia fruticosa (L.) Raim. -- not accepted
  Kneiffia glauca (Michx.) Spach -- not accepted
  Kneiffia hybrida (Michx.) Small -- not accepted
  Kneiffia latifolia Rydb. -- not accepted
  Kneiffia linearis (Michx.) Spach -- not accepted
  Kneiffia linifolia (Nutt.) Spach -- not accepted
  Kneiffia longipedicellata Small -- not accepted
  Kneiffia perennis (L.) Pennell -- not accepted
  Kneiffia pratensis Small -- not accepted
  Kneiffia pumila (L.) Spach -- not accepted
  Kneiffia riparia (Nutt.) Small -- not accepted
  Kneiffia semiglandulosa Pennell -- not accepted
  Kneiffia subglobosa Small -- not accepted
  Kneiffia sumstinei Jenn. -- not accepted
  Kneiffia tetragona (Roth) Pennell -- not accepted
  Lavauxia brachycarpa (A. Gray) Britton -- not accepted
  Lavauxia flava A. Nelson -- not accepted
  Lavauxia howardii A. Nelson -- not accepted
  Lavauxia taraxacoides Wooton & Standl. -- not accepted
  Lavauxia triloba (Nutt.) Spach -- not accepted
  Lavauxia watsonii (Britton) Small -- not accepted
  Lopezia Cav. -- accepted
  Lopezia coronata Andrews -- not accepted
  Ludwigia L. -- accepted -- primrose-willow, seedbox
  Ludwigia alata Elliott -- accepted -- winged primrose-willow
  Ludwigia alternifolia L. -- accepted -- bushy seedbox, seedbox
  Ludwigia alternifolia var. linearifolia Britton -- not accepted
  Ludwigia alternifolia var. pubescens E.J. Palmer & Steyerm. -- not accepted
  Ludwigia alternifolia var. typica Munz -- not accepted
  Ludwigia arcuata Walter -- accepted -- piedmont primrose-willow
  Ludwigia bonariensis (Micheli) H. Hara -- accepted -- Carolina primrose-willow
  Ludwigia brevipes (Long) Eames -- accepted -- Long Beach primrose-willow
  Ludwigia curtissii Chapm. -- accepted -- Curtiss' primrose-willow
  Ludwigia cylindrica var. brachycarpa Torr. & A. Gray -- not accepted
  Ludwigia decurrens (DC.) Walter -- accepted -- wingleaf primrose-willow, wingleaf waterprimrose
  Ludwigia erecta (L.) H. Hara -- accepted -- yerba de jicotea
  Ludwigia glandulosa Walter -- accepted -- creeping seedbox, cylindricfruit primrose-willow
  Ludwigia glandulosa ssp. brachycarpa (Torr. & A. Gray) C.I. Peng -- accepted -- cylindricfruit primrose-willow
  Ludwigia glandulosa ssp. glandulosa Walter -- accepted -- cylindricfruit primrose-willow
  Ludwigia glandulosa var. torreyi Munz -- not accepted
  Ludwigia glandulosa var. typica Munz -- not accepted
  Ludwigia grandiflora (Michx.) Greuter & Burdet -- accepted -- large-flower primrose-willow
  Ludwigia grandiflora ssp. grandiflora (Michx.) Greuter & Burdet -- not accepted -- large-flower primrose-willow
  Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) G.L. Nesom & Kartesz -- not accepted
  Ludwigia hexapetala (Hook. & Arn.) Zardini, H.Y. Gu & P.H. Raven -- accepted
  Ludwigia hirtella Raf. -- accepted -- spindleroot
  Ludwigia hyssopifolia (G. Don) Exell -- accepted -- seedbox
  Ludwigia lanceolata Elliott -- accepted -- lanceleaf primrose-willow
  Ludwigia leptocarpa (Nutt.) H. Hara -- accepted -- anglestem primrose-willow, anglestem waterprimrose
  Ludwigia leptocarpa var. meyeriana (Kuntze) Alain -- not accepted
  Ludwigia linearis Walter -- accepted -- narrowleaf primrose-willow, narrowleaf primrosewillow
  Ludwigia linearis var. puberula Engelm. & A. Gray -- not accepted
  Ludwigia linifolia Poir. -- accepted -- southeastern primrose-willow
  Ludwigia longifolia (DC.) H. Hara -- accepted -- longleaf primrose-willow
  Ludwigia maritima R.M. Harper -- accepted -- seaside primrose-willow
  Ludwigia microcarpa Michx. -- accepted -- smallfruit primrose-willow, smallfruit primrosewillow
  Ludwigia natans Elliott -- not accepted
  Ludwigia natans var. stipitata Fernald & Griscom -- not accepted
  Ludwigia octovalis (Jacq.) P.H. Raven -- not accepted
  Ludwigia octovalvis (Jacq.) P.H. Raven -- accepted -- Mexican primrose-willow, Mexican primrosewillow
  Ludwigia octovalvis ssp. octovalvis (Jacq.) P.H. Raven -- not accepted -- Mexican primrose-willow, Mexican primrosewillow
  Ludwigia octovalvis ssp. sessiliflora (Micheli) P.H. Raven -- not accepted -- Mexican primrose-willow
  Ludwigia octovalvis var. ligustrifolia (Kunth) Alain -- not accepted
  Ludwigia octovalvis var. macropoda (C. Presl) Shinners -- not accepted
  Ludwigia octovalvis var. octofila (DC.) Alain -- not accepted
  Ludwigia octovalvis var. sessiliflora (Micheli) Shinners -- not accepted
  Ludwigia palustris (L.) Elliott -- accepted -- marsh primrose-willow, marsh seedbox
  Ludwigia palustris var. americana (DC.) Fernald & Griscom -- not accepted
  Ludwigia palustris var. nana Fernald & Griscom -- not accepted
  Ludwigia palustris var. pacifica Fernald & Griscom -- not accepted
  Ludwigia peploides (Kunth) P.H. Raven -- accepted -- creeping waterprimrose, floating primrose, floating primrose-willow, floating primrosewillow
  Ludwigia peploides ssp. glabrescens (Kuntze) P.H. Raven -- accepted -- floating primrose-willow, floating primrosewillow
  Ludwigia peploides ssp. montevidensis (Spreng.) P.H. Raven -- accepted -- floating primrose-willow
  Ludwigia peploides ssp. peploides (Kunth) P.H. Raven -- accepted -- floating primrose-willow, floating primrosewillow
  Ludwigia peploides var. glabrescens (Kuntze) Shinners -- not accepted
  Ludwigia peploides var. montevidensis (Spreng.) Shinners -- not accepted
  Ludwigia peruviana (L.) H. Hara -- accepted -- Peruvian primrose-willow
  Ludwigia pilosa Walter -- accepted -- hairy primrose-willow, hairy primrosewillow
  Ludwigia polycarpa Short & Peter -- accepted -- manyfruit primrose-willow
  Ludwigia ravenii C.I. Peng -- accepted -- Raven's primrose-willow
  Ludwigia repens J.R. Forst. -- accepted -- creeping primrose-willow, creeping primrosewillow, creeping waterpurslane
  Ludwigia repens var. rotundata (Griseb.) M.Gómez -- not accepted
  Ludwigia repens var. stipitata (Fernald & Griscom) Munz -- not accepted
  Ludwigia simpsonii Chapm. -- accepted -- Simpson's primrose-willow
  Ludwigia simulata Small -- not accepted
  Ludwigia spathulata Torr. & A. Gray -- accepted -- spoon primrose-willow
  Ludwigia spathulifolia Small -- not accepted
  Ludwigia sphaerocarpa Elliott -- accepted -- globefruit primrose-willow, globefruit primrosewillow
  Ludwigia sphaerocarpa var. deamii Fernald & Griscom -- not accepted
  Ludwigia sphaerocarpa var. jungens Fernald & Griscom -- not accepted
  Ludwigia sphaerocarpa var. macrocarpa Fernald & Griscom -- not accepted
  Ludwigia suffruticosa Walter -- accepted -- shrubby primrose-willow
  Ludwigia uruguayensis (Cambess.) H. Hara -- not accepted -- Uruguay waterprimrose, Uruguayan primrose-willow, Uruguayan primrosewillow, water primrose
  Ludwigia uruguayensis var. major (Hassler) Munz -- not accepted
  Ludwigia virgata Michx. -- accepted -- savannah primrose-willow
  Ludwigia X lacustris Eames (pro. sp.) -- accepted -- lake ludwigia
  Ludwigiantha arcuata (Walter) Small -- not accepted
  Ludwigiantha brevipes Long ex Britton, A. Braun & Small -- not accepted
  Megapterium brachycarpum (A. Gray) H. Lév. -- not accepted
  Megapterium fremontii (S. Watson) Britton -- not accepted
  Megapterium missouriense (Sims) Spach -- not accepted
  Megapterium oklahomense Norton -- not accepted
  Meriolix capillifolia (Scheele) Small -- not accepted
  Meriolix hillii Small -- not accepted
  Meriolix intermedia Rydb. ex Small -- not accepted
  Meriolix melanoglottis Rydb. ex Small -- not accepted
  Meriolix oblanceolata Rydb. -- not accepted
  Meriolix serrulata (Nutt.) Walp. -- not accepted
  Oenothera L. -- accepted -- evening primrose, evening-primrose, eveningprimrose
  Oenothera abramsii J.F. Macbr. -- not accepted
  Oenothera acutissima W.L. Wagner -- accepted -- Flaming Gorge evening primrose, Flaming Gorge evening-primrose, narrowleaf evening-primrose
  Oenothera affinis Cambess. -- accepted -- longflower evening primrose, longflower evening-primrose
  Oenothera albicaulis Pursh -- accepted -- halfshrub sundrop, white-stem evening-primrose, whitest evening primrose, whitest evening-primrose, whitest eveningprimrose
  Oenothera albinervis R.R. Gates -- not accepted
  Oenothera alyssoides Hook. & Arn. -- not accepted
  Oenothera alyssoides var. villosa S. Watson -- not accepted
  Oenothera amplexicaulis (Wooton & Standl.) Tidestr. -- not accepted
  Oenothera andina Nutt. -- not accepted
  Oenothera andina var. hilgardii (Greene) Munz -- not accepted
  Oenothera angustissima R.R. Gates -- not accepted
  Oenothera arenaria (A. Nelson) P.H. Raven -- not accepted
  Oenothera arenicola (Small) Coker -- not accepted
  Oenothera argillicola Mack. -- accepted -- shale barren evening primrose, shalebarren evening-primrose
  Oenothera argillicola var. pubescens Core & H.A. Davis -- not accepted
  Oenothera arida W.L. Wagner & Hoch -- accepted -- Trans-Pecos beeblossom
  Oenothera arizonica (Munz) W.L. Wagner -- accepted -- California evening primrose
  Oenothera austromontana (Munz) P.H. Raven, W. Dietr. & Stubblef. -- not accepted
  Oenothera avita (W.M. Klein) W.M. Klein -- not accepted
  Oenothera avita ssp. arizonica (Munz) W.M. Klein -- not accepted
  Oenothera avita ssp. eurekensis (Munz & J.C. Roos) W.M. Klein -- not accepted -- Eureka Valley evening-primrose
  Oenothera berlandieri (Spach) Steud. -- accepted -- Berlandier's sundrops
  Oenothera berlandieri ssp. berlandieri (Spach) Steud. -- accepted -- Berlandier's sundrops
  Oenothera berlandieri ssp. pinifolia (Engelm.) W.L. Wagner & Hoch -- accepted -- Berlandier's sundrops
  Oenothera biennis L. -- accepted -- common evening primrose, common evening-primrose, hoary eveningprimrose, king's-cureall
  Oenothera biennis ssp. austromontana Munz -- not accepted
  Oenothera biennis ssp. caeciarum Munz -- not accepted
  Oenothera biennis ssp. centralis Munz -- not accepted
  Oenothera biennis var. austromontana (Munz) Cronquist -- not accepted
  Oenothera biennis var. canescens Torr. & A. Gray -- not accepted
  Oenothera biennis var. hirsutissima A. Gray ex S. Watson -- not accepted
  Oenothera biennis var. hookeri (Torr. & A. Gray) B. Boivin -- not accepted
  Oenothera biennis var. nutans (Atk. & Bartlett) Wiegand -- not accepted
  Oenothera biennis var. oakesiana A. Gray -- not accepted
  Oenothera biennis var. pycnocarpa (Atk. & Bartlett) Wiegand -- not accepted
  Oenothera biennis var. strigosa (Rydb.) Piper -- not accepted
  Oenothera bifrons D. Don -- not accepted
  Oenothera bistorta Nutt. ex Torr. & A. Gray -- not accepted
  Oenothera bistorta var. hallii (Davidson) Jeps. -- not accepted
  Oenothera bistorta var. veitchiana Hook. -- not accepted
  Oenothera boothii Douglas -- not accepted
  Oenothera boothii ssp. alyssoides (Hook. & Arn.) Munz -- not accepted
  Oenothera boothii ssp. condensata (Munz) Munz -- not accepted
  Oenothera boothii ssp. decorticans (Hook. & Arn.) Munz -- not accepted
  Oenothera boothii ssp. desertorum (Munz) Munz -- not accepted
  Oenothera boothii ssp. intermedia Munz -- not accepted
  Oenothera boothii ssp. inyoensis Munz -- not accepted
  Oenothera boothii ssp. rutila (Davidson) Munz -- not accepted
  Oenothera boothii var. pygmaea (Douglas ex Lehm.) Torr. & A. Gray -- not accepted
  Oenothera boquillensis (P.H. Raven & D.P. Greg.) W.L. Wagner & Hoch -- accepted -- Rio Grande beeblossom
  Oenothera brachycarpa A. Gray -- accepted -- shortfruit evening primrose, shortfruit evening-primrose, shortfruit eveningprimrose
  Oenothera brachycarpa var. wrightii (A. Gray) H. Lév. -- not accepted
  Oenothera breviflora Torr. & A. Gray -- not accepted
  Oenothera brevipes A. Gray -- not accepted
  Oenothera brevipes ssp. arizonica P.H. Raven -- not accepted
  Oenothera brevipes ssp. pallidula (Munz) P.H. Raven -- not accepted
  Oenothera brevipes var. pallidula Munz -- not accepted
  Oenothera caespitosa Nutt. -- not accepted -- tufted evening primrose, tufted evening-primrose
  Oenothera caespitosa ssp. australis Wooton & Standl. -- not accepted
  Oenothera caespitosa ssp. caespitosa Nutt. -- not accepted -- tufted evening primrose, tufted evening-primrose
  Oenothera caespitosa ssp. crinita (Rydb.) Munz -- not accepted -- tufted evening primrose, tufted evening-primrose
  Oenothera caespitosa ssp. eximia (A. Gray) Munz -- not accepted
  Oenothera caespitosa ssp. jonesii (Munz) Munz -- not accepted
  Oenothera caespitosa ssp. macroglottis (Rydb.) W.L. Wagner, Stockh. & W.M. Klein -- not accepted -- tufted evening primrose, tufted evening-primrose
  Oenothera caespitosa ssp. marginata (Nutt. ex Hook. & Arn.) Munz -- not accepted -- tufted evening primrose, tufted evening-primrose
  Oenothera caespitosa ssp. montana (Nutt.) Munz -- not accepted
  Oenothera caespitosa ssp. navajoensis W.L. Wagner, Stockh. & W.M. Klein -- not accepted -- Navajo evening primrose, Navajo evening-primrose
  Oenothera caespitosa ssp. purpurea (S. Watson) Munz -- not accepted
  Oenothera caespitosa var. australis (Wooton & Standl.) Munz -- not accepted
  Oenothera caespitosa var. crinita (Rydb.) Munz -- not accepted
  Oenothera caespitosa var. eximia (A. Gray) Munz -- not accepted
  Oenothera caespitosa var. jonesii Munz -- not accepted
  Oenothera caespitosa var. longiflora (A. Heller) Munz -- not accepted
  Oenothera caespitosa var. macroglottis (Rydb.) Cronquist -- not accepted
  Oenothera caespitosa var. marginata (Nutt. ex Hook. & Arn.) Munz -- not accepted
  Oenothera caespitosa var. montana (Nutt.) Durand -- not accepted
  Oenothera caespitosa var. navajoensis (W.L. Wagner, Stockh. & W.M. Klein) Cronquist -- not accepted
  Oenothera caespitosa var. psammophila (A. Nelson & J.F. Macbr.) Munz -- not accepted
  Oenothera caespitosa var. purpurea (S. Watson) Munz -- not accepted
  Oenothera calcicola (P.H. Raven & D.P. Greg.) W.L. Wagner & Hoch -- accepted -- Texas beeblossom
  Oenothera californica (Nutt. ex Torr. & A. Gray) Greene -- not accepted -- California eveningprimrose
  Oenothera californica (S. Watson) S. Watson -- accepted -- California evening primrose, California evening-primrose, California eveningprimrose
  Oenothera californica ssp. arizonica (Munz) W.M. Klein -- not accepted -- California evening-primrose
  Oenothera californica ssp. avita W.M. Klein -- accepted -- California evening primrose, California evening-primrose
  Oenothera californica ssp. californica (S. Watson) S. Watson -- accepted -- California evening primrose, California evening-primrose
  Oenothera californica ssp. eurekensis (Munz & J.C. Roos) W.M. Klein -- accepted -- Eureka Dunes evening primrose, Eureka evening-primrose, Eureka Valley evening-primrose
  Oenothera californica var. glabrata Munz -- not accepted
  Oenothera campestris Greene -- not accepted
  Oenothera campestris ssp. parishii (Abrams) Munz -- not accepted
  Oenothera canescens Torr. & Frém. -- accepted -- beakpod evening primrose, beakpod eveningprimrose, spotted evening primrose, spotted evening-primrose, spotted eveningprimrose
  Oenothera canovirens E.S. Steele -- not accepted
  Oenothera cardiophylla Torr. -- not accepted
  Oenothera cardiophylla ssp. robusta P.H. Raven -- not accepted
  Oenothera cardiophylla var. splendens Munz & I.M. Johnst. -- not accepted
  Oenothera cardiophylla var. typica Munz -- not accepted
  Oenothera cavernae Munz -- accepted -- cavedwelling evening primrose, cavedwelling evening-primrose, cavedwelling eveningprimrose
  Oenothera cespitosa Nutt. -- accepted -- tufted evening primrose, tufted eveningprimrose
  Oenothera cespitosa ssp. australis Wooton & Standl. -- not accepted
  Oenothera cespitosa ssp. cespitosa Nutt. -- accepted -- tufted evening primrose, tufted eveningprimrose
  Oenothera cespitosa ssp. crinita (Rydb.) Munz -- accepted -- tufted evening primrose, tufted eveningprimrose
  Oenothera cespitosa ssp. eximia (A. Gray) Munz -- not accepted
  Oenothera cespitosa ssp. jonesii (Munz) Munz -- not accepted
  Oenothera cespitosa ssp. macroglottis (Rydb.) W.L. Wagner, Stockh. & W.M. Klein -- accepted -- tufted evening primrose, tufted eveningprimrose
  Oenothera cespitosa ssp. marginata (Nutt. ex Hook. & Arn.) Munz -- accepted -- tufted evening primrose, tufted eveningprimrose
  Oenothera cespitosa ssp. montana (Nutt.) Munz -- not accepted
  Oenothera cespitosa ssp. navajoensis W.L. Wagner, Stockh. & W.M. Klein -- accepted -- Navajo evening primrose, Navajo eveningprimrose
  Oenothera cespitosa ssp. purpurea (S. Watson) Munz -- not accepted
  Oenothera cespitosa var. australis (Wooton & Standl.) Munz -- not accepted
  Oenothera cespitosa var. crinita (Rydb.) Munz -- not accepted
  Oenothera cespitosa var. eximia (A. Gray) Munz -- not accepted
  Oenothera cespitosa var. jonesii Munz -- not accepted
  Oenothera cespitosa var. longiflora (A. Heller) Munz -- not accepted
  Oenothera cespitosa var. macroglottis (Rydb.) Cronquist -- not accepted
  Oenothera cespitosa var. marginata (Nutt. ex Hook. & Arn.) Munz -- not accepted
  Oenothera cespitosa var. montana (Nutt.) Durand -- not accepted
  Oenothera cespitosa var. navajoensis (W.L. Wagner, Stockh. & W.M. Klein) Cronquist -- not accepted
  Oenothera cespitosa var. psammophila (A. Nelson & J.F. Macbr.) Munz -- not accepted
  Oenothera cespitosa var. purpurea (S. Watson) Munz -- not accepted
  Oenothera chamaenerioides A. Gray -- not accepted
  Oenothera cheiranthifolia Hornem. ex Spreng. -- not accepted
  Oenothera cheiranthifolia ssp. suffruticosa (S. Watson) Munz -- not accepted
  Oenothera cheiranthifolia var. nitida (Greene) Munz -- not accepted
  Oenothera cheradophila Bartlett -- not accepted
  Oenothera cinerea (Wooton & Standl.) W.L. Wagner & Hoch -- accepted -- woolly beeblossom
  Oenothera cinerea ssp. cinerea (Wooton & Standl.) W.L. Wagner & Hoch -- accepted -- woolly beeblossom
  Oenothera cinerea ssp. parksii (Munz) W.L. Wagner & Hoch -- accepted -- Parks' beeblossom
  Oenothera claviformis Torr. & Frém. -- not accepted
  Oenothera claviformis ssp. aurantiaca (Munz) P.H. Raven -- not accepted
  Oenothera claviformis ssp. cruciformis (Kellogg) P.H. Raven -- not accepted
  Oenothera claviformis ssp. funerea P.H. Raven -- not accepted
  Oenothera claviformis ssp. integrior P.H. Raven -- not accepted
  Oenothera claviformis ssp. lancifolia (A. Heller) P.H. Raven -- not accepted
  Oenothera claviformis ssp. peeblesii (Munz) P.H. Raven -- not accepted
  Oenothera claviformis ssp. peirsonii (Munz) P.H. Raven -- not accepted
  Oenothera claviformis ssp. rubescens P.H. Raven -- not accepted
  Oenothera claviformis ssp. yumae P.H. Raven -- not accepted
  Oenothera claviformis var. aurantiaca Munz -- not accepted
  Oenothera claviformis var. citrina P.H. Raven -- not accepted
  Oenothera claviformis var. cruciformis (Kellogg) Munz -- not accepted
  Oenothera claviformis var. peeblesii Munz -- not accepted
  Oenothera claviformis var. peirsonii Munz -- not accepted
  Oenothera claviformis var. purpurascens (S. Watson) Munz -- not accepted
  Oenothera clelandii W. Dietr., P.H. Raven & W.L. Wagner -- accepted -- Cleland's evening primrose, Cleland's evening-primrose
  Oenothera coloradensis (Rydb.) W.L. Wagner & Hoch -- accepted -- New Mexico beeblossom
  Oenothera coloradensis ssp. coloradensis (Rydb.) W.L. Wagner & Hoch -- accepted -- Colorado beeblossom, Colorado butterfly plant
  Oenothera coloradensis ssp. neomexicana (Wooton) W.L. Wagner & Hoch -- accepted -- New Mexico beeblossom
  Oenothera confertiflora P.H. Raven -- not accepted
  Oenothera contorta Douglas ex Lehm. -- not accepted
  Oenothera contorta var. epilobioides (Greene) Munz -- not accepted
  Oenothera contorta var. flexuosa (A. Nelson) Munz -- not accepted
  Oenothera contorta var. hilgardii (Greene) Munz -- not accepted
  Oenothera contorta var. pubens (S. Watson) Coville -- not accepted
  Oenothera contorta var. strigulosa (Fisch. & C.A. Mey.) Munz -- not accepted
  Oenothera cordata J.W. Loudon -- accepted -- heartleaf evening primrose, heartleaf evening-primrose, heartleaf eveningprimrose
  Oenothera coronopifolia Torr. & A. Gray -- accepted -- crownleaf evening primrose, crownleaf evening-primrose, crownleaf eveningprimrose
  Oenothera coryi W.L. Wagner -- accepted -- El Paso evening primrose, El Paso evening-primrose, El Paso eveningprimrose
  Oenothera cruciata (S. Watson) Munz -- not accepted
  Oenothera cruciata Nutt. ex G. Don -- not accepted
  Oenothera cruciata var. sabulonensis Fernald -- not accepted
  Oenothera cruciata var. stenopetala (E.P. Bicknell) Fernald -- not accepted
  Oenothera cruciformis Kellogg -- not accepted
  Oenothera ctenophylla (Wooton & Standl.) Tidestr. -- not accepted
  Oenothera curtiflora W.L. Wagner & Hoch -- accepted -- velvetweed
  Oenothera curtisii (Rose) Small -- not accepted
  Oenothera curtissii (Rose) Small -- accepted -- Curtiss' evening primrose, Curtiss' evening-primrose
  Oenothera cymatilis Bartlett -- not accepted
  Oenothera decorticans (Hook. & Arn.) Greene -- not accepted
  Oenothera decorticans var. condensata Munz -- not accepted
  Oenothera decorticans var. desertorum Munz -- not accepted
  Oenothera decorticans var. rutila (Davidson) Munz -- not accepted
  Oenothera delessertiana Steud. -- not accepted
  Oenothera deltoides Torr. & Frém. -- accepted -- birdcage evening primrose, birdcage evening-primrose, birdcage eveningprimrose, dune primrose
  Oenothera deltoides ssp. ambigua (S. Watson) W.M. Klein -- accepted -- birdcage evening primrose, birdcage evening-primrose, birdcage eveningprimrose
  Oenothera deltoides ssp. cognata (Jeps.) W.M. Klein -- accepted -- birdcage evening primrose, birdcage evening-primrose
  Oenothera deltoides ssp. deltoides Torr. & Frém. -- accepted -- birdcage evening primrose, birdcage evening-primrose, birdcage primrose, triangle eveningprimrose
  Oenothera deltoides ssp. eurekensis Munz & J.C. Roos -- not accepted
  Oenothera deltoides ssp. howellii (Munz) W.M. Klein -- accepted -- Antioch Dunes evening primrose, Antioch Dunes evening-primrose
  Oenothera deltoides ssp. piperi (Munz) W.M. Klein -- accepted -- Piper's evening primrose, Piper's evening-primrose, Piper's eveningprimrose
  Oenothera deltoides var. arizonica Munz -- not accepted
  Oenothera deltoides var. cineracea (Jeps.) Munz -- not accepted
  Oenothera deltoides var. cognata (Jeps.) Munz -- not accepted
  Oenothera deltoides var. decumbens (S. Watson) Munz -- not accepted
  Oenothera deltoides var. howellii Munz -- not accepted
  Oenothera deltoides var. piperi Munz -- not accepted
  Oenothera deltoides var. typica Munz -- not accepted
  Oenothera demareei (P.H. Raven & D.P. Greg.) W.L. Wagner & Hoch -- accepted -- Demaree's beeblossom
  Oenothera densiflora Lindl. -- not accepted
  Oenothera dentata auct. non Cav. -- not accepted
  Oenothera dentata var. campestris (Greene) Jeps. -- not accepted
  Oenothera dentata var. gilmanii Munz -- not accepted
  Oenothera dentata var. johnstonii Munz -- not accepted
  Oenothera dentata var. parishii (Abrams) Munz -- not accepted
  Oenothera depressa Greene -- not accepted
  Oenothera depressa ssp. strigosa (Rydb.) Roy L. Taylor & MacBryde -- not accepted
  Oenothera drummondii Hook. -- accepted -- beach evening primrose, beach evening-primrose, beach eveningprimrose
  Oenothera drummondii ssp. drummondii Hook. -- accepted -- beach evening primrose
  Oenothera eastwoodiae (Munz) P.H. Raven -- not accepted
  Oenothera elata Kunth -- accepted -- Hooker's evening primrose, Hooker's evening-primrose, Hooker's eveningprimrose, western eveningprimrose
  Oenothera elata ssp. hirsutissima (A. Gray ex S. Watson) W. Dietr. -- accepted -- Hooker's evening primrose, Hooker's evening-primrose, Hooker's eveningprimrose
  Oenothera elata ssp. hookeri (Torr. & A. Gray) W. Dietr. & W.L. Wagner -- accepted -- Hooker's evening primrose, Hooker's evening-primrose
  Oenothera elata ssp. texensis W. Dietr. & W.L. Wagner -- not accepted -- Texas eveningprimrose
  Oenothera elata var. hirsutissima (A. Gray ex S. Watson) Cronquist -- not accepted
  Oenothera engelmannii (Small) Munz -- accepted -- Engelmann's evening primrose, Engelmann's evening-primrose, Engelmann's eveningprimrose
  Oenothera erythrosepala Borbás -- not accepted
  Oenothera exilis P.H. Raven -- not accepted
  Oenothera falfurriae W. Dietr. & W.L. Wagner -- accepted -- royal evening primrose, royal evening-primrose, royal eveningprimrose
  Oenothera fendleri A. Gray -- not accepted
  Oenothera filifolia (Eastw.) Tidestr. -- not accepted
  Oenothera filiformis (Small) W.L. Wagner & Hoch -- accepted -- longflower beeblossom
  Oenothera filipes (Spach) W.L. Wagner & Hoch -- accepted -- slenderstalk beeblossom
  Oenothera flava (A. Nelson) Garrett -- accepted -- long-tube evening primrose, long-tube evening-primrose, yellow evening primrose, yellow evening-primrose, yellow eveningprimrose
  Oenothera flava ssp. flava (A. Nelson) Garrett -- not accepted -- yellow evening primrose, yellow evening-primrose, yellow eveningprimrose
  Oenothera flava ssp. taraxacoides (Wooton & Standl.) W.L. Wagner -- not accepted -- yellow evening primrose, yellow evening-primrose
  Oenothera flava var. acutissima (W.L. Wagner) S.L. Welsh -- not accepted
  Oenothera fremontii S. Watson -- not accepted
  Oenothera fruticosa L. -- accepted -- narrowleaf evening primrose, narrowleaf evening-primrose
  Oenothera fruticosa ssp. fruticosa L. -- accepted -- narrowleaf evening primrose, narrowleaf evening-primrose
  Oenothera fruticosa ssp. glauca (Michx.) Straley -- accepted -- narrowleaf evening primrose, narrowleaf evening-primrose, shrubby sundrops
  Oenothera fruticosa var. eamesii (B.L. Rob.) S.F. Blake -- not accepted
  Oenothera fruticosa var. goodmanii Munz -- not accepted
  Oenothera fruticosa var. humifusa Allen -- not accepted
  Oenothera fruticosa var. linearis (Michx.) S. Watson -- not accepted
  Oenothera fruticosa var. microcarpa Fernald -- not accepted
  Oenothera fruticosa var. subglobosa (Small) Munz -- not accepted
  Oenothera fruticosa var. unguiculata Fernald -- not accepted
  Oenothera fruticosa var. vera Hook. -- not accepted
  Oenothera gaura W.L. Wagner & Hoch -- accepted -- biennial beeblossom
  Oenothera glabella Nutt. -- not accepted
  Oenothera glaucifolia W.L. Wagner & Hoch -- accepted -- false gaura
  Oenothera glazioviana Micheli -- accepted -- large-flower evening-primrose, redsepal evening primrose, redsepal evening-primrose
  Oenothera gouldii (P.H. Raven) S.L. Welsh & N.D. Atwood -- not accepted
  Oenothera graciliflora Hook. & Arn. -- not accepted
  Oenothera grandiflora L'Hér. ex Aiton -- accepted -- largeflower evening primrose, largeflower evening-primrose
  Oenothera grandis (Britton) Smyth -- accepted -- largeflower eveningprimrose, showy evening primrose, showy evening-primrose, showy eveningprimrose
  Oenothera greggii A. Gray -- not accepted
  Oenothera greggii var. lampasana (Buckley) Munz -- not accepted
  Oenothera greggii var. pringlei Munz -- not accepted
  Oenothera greggii var. pubescens A. Gray -- not accepted
  Oenothera guadalupensis S. Watson -- not accepted
  Oenothera guadalupensis ssp. clementina P.H. Raven -- not accepted
  Oenothera hallii (Davidson) Munz -- not accepted
  Oenothera hamata (Wooton & Standl.) Tidestr. -- not accepted
  Oenothera harringtonii W.L. Wagner, Stockh. & W.M. Klein -- accepted -- Colorado Springs evening primrose, Colorado Springs evening-primrose
  Oenothera hartwegii Benth. -- accepted
  Oenothera hartwegii ssp. fendleri (A. Gray) W.L. Wagner & Hoch -- accepted -- Hartweg's sundrops
  Oenothera hartwegii ssp. filifolia (Eastw.) W.L. Wagner & Hoch -- accepted -- Hartweg's sundrops
  Oenothera hartwegii ssp. hartwegii Benth. -- accepted -- Hartweg's sundrops
  Oenothera hartwegii ssp. maccartii (Shinners) W.L. Wagner & Hoch -- accepted -- MacCart's sundrops
  Oenothera hartwegii ssp. pubescens (A. Gray) W.L. Wagner & Hoch -- accepted -- Hartweg's sundrops
  Oenothera hartwegii var. fendleri (A. Gray) A. Gray -- not accepted
  Oenothera hartwegii var. filifolia (Eastw.) Munz -- not accepted
  Oenothera hartwegii var. toumeyi (Small) Munz -- not accepted
  Oenothera hartwegii var. typica Munz -- not accepted
  Oenothera havardii S. Watson -- accepted -- Havard's evening primrose, Havard's evening-primrose, Havard's eveningprimrose
  Oenothera heterantha Nutt. -- not accepted
  Oenothera heterochroma S. Watson -- not accepted
  Oenothera heterochroma ssp. monoensis (Munz) P.H. Raven -- not accepted
  Oenothera heterochroma var. megalantha Munz -- not accepted
  Oenothera heterochroma var. monoensis Munz -- not accepted
  Oenothera heterophylla Spach -- accepted -- largeflower eveningprimrose, variableleaf evening primrose, variableleaf evening-primrose
  Oenothera heterophylla ssp. heterophylla Spach -- accepted -- variableleaf evening primrose, variableleaf evening-primrose, variableleaf eveningprimrose
  Oenothera heterophylla ssp. orientalis W. Dietr., P.H. Raven & W.L. Wagner -- accepted -- Oriental evening primrose, oriental evening-primrose
  Oenothera heterophylla var. rhombipetala (Nutt. ex Torr. & A. Gray) Fosberg -- not accepted
  Oenothera hexandra (Ortega) W.L. Wagner & Hoch -- accepted -- harlequinbush
  Oenothera hexandra ssp. gracilis (Wooton & Standl.) W.L. Wagner & Hoch -- accepted -- harlequinbush
  Oenothera hexandra ssp. hexandra (Ortega) W.L. Wagner & Hoch -- accepted -- harlequinbush
  Oenothera hilgardii Greene -- not accepted
  Oenothera hirtella Greene -- not accepted
  Oenothera hookeri Torr. & A. Gray -- not accepted
  Oenothera hookeri ssp. angustifolia (R.R. Gates) Munz -- not accepted
  Oenothera hookeri ssp. grisea (Bartlett) Munz -- not accepted
  Oenothera hookeri ssp. hewettii Cockerell -- not accepted
  Oenothera hookeri ssp. hirsutissima (A. Gray ex S. Watson) Munz -- not accepted
  Oenothera hookeri ssp. montereyensis Munz -- not accepted
  Oenothera hookeri ssp. ornata (A. Nelson) Munz -- not accepted
  Oenothera hookeri ssp. venusta (Bartlett) Munz -- not accepted
  Oenothera hookeri ssp. wolfii Munz -- not accepted
  Oenothera hookeri var. angustifolia R.R. Gates -- not accepted
  Oenothera hookeri var. hewettii (Cockerell) R.R. Gates -- not accepted
  Oenothera hookeri var. hirsutissima (A. Gray ex S. Watson) Munz -- not accepted
  Oenothera hookeri var. ornata (A. Nelson) Munz -- not accepted
  Oenothera howardii (A. Nelson) W.L. Wagner -- accepted -- Howard's evening primrose, Howard's evening-primrose, Howard's eveningprimrose
  Oenothera humifusa Nutt. -- accepted -- seabeach evening primrose, seabeach evening-primrose, seabeach eveningprimrose
  Oenothera ignota (Jeps.) Munz -- not accepted
  Oenothera jamesii Torr. & A. Gray -- accepted -- James' eveningprimrose, trumpet evening primrose, trumpet evening-primrose
  Oenothera kernensis Munz -- not accepted
  Oenothera kernensis ssp. gilmanii (Munz) Munz -- not accepted
  Oenothera kernensis ssp. mojavensis Munz -- not accepted
  Oenothera kleinii W.L. Wagner & S.W. Mill. -- not accepted -- Klein's evening-primrose, Wolf Creek evening-primrose
  Oenothera kunthiana (Spach) Munz -- accepted -- Kunth's evening primrose, Kunth's evening-primrose, Kunth's eveningprimrose
  Oenothera laciniata Hill -- accepted -- cut-leaf evening-primrose, cut-leaved evening primrose, cutleaf evening primrose, cutleaf evening-primrose, cutleaf eveningprimrose
  Oenothera laciniata ssp. pubescens (Willd. ex Spreng.) Munz -- not accepted
  Oenothera laciniata var. grandiflora (S. Watson) B.L. Rob. -- not accepted
  Oenothera laciniata var. pubescens (Willd. ex Spreng.) Munz -- not accepted
  Oenothera latifolia (Rydb.) Munz -- not accepted -- mountain evening primrose, mountain evening-primrose, mountain eveningprimrose
  Oenothera lavandulifolia Torr. & A. Gray -- accepted -- lavenderleaf sundrops
  Oenothera lavandulifolia var. glandulosa Munz -- not accepted
  Oenothera lavandulifolia var. typica Munz -- not accepted
  Oenothera leptocarpa Greene -- not accepted
  Oenothera lindheimeri (Engelm. & A. Gray) W.L. Wagner & Hoch -- accepted -- Lindheimer's beeblossom
  Oenothera linifolia Nutt. -- accepted -- threadleaf evening primrose, threadleaf evening-primrose, threadleaf sundrop
  Oenothera linifolia var. glandulosa Munz -- not accepted
  Oenothera longipedicellata (Small) B.L. Rob. -- not accepted
  Oenothera longissima Rydb. -- accepted -- longstem evening primrose, longstem evening-primrose, longstem eveningprimrose
  Oenothera longissima ssp. clutei (A. Nelson) Munz -- not accepted
  Oenothera longissima ssp. typica Munz -- not accepted
  Oenothera longissima var. clutei (A. Nelson) Munz -- not accepted
  Oenothera longissima var. longissima Rydb. -- not accepted
  Oenothera macrocarpa Nutt. -- accepted -- bigfruit evening primrose, bigfruit evening-primrose, bigfruit eveningprimrose, Ozark sundrop
  Oenothera macrocarpa ssp. fremontii (S. Watson) W.L. Wagner -- accepted -- Fremont's evening primrose, Fremont's evening-primrose
  Oenothera macrocarpa ssp. incana (A. Gray) W.L. Wagner -- accepted -- bigfruit evening primrose, bigfruit evening-primrose, bigfruit eveningprimrose
  Oenothera macrocarpa ssp. macrocarpa Nutt. -- accepted -- bigfruit evening primrose, bigfruit evening-primrose, bigfruit eveningprimrose
  Oenothera macrocarpa ssp. oklahomensis (Norton) W.L. Wagner -- accepted -- Oklahoma evening primrose, Oklahoma evening-primrose, Oklahoma eveningprimrose
  Oenothera macrocarpa var. incana (A. Gray) Reveal -- not accepted
  Oenothera macrocarpa var. oklahomensis (Norton) Reveal -- not accepted
  Oenothera macrosiphon Wooton & Standl. -- not accepted
  Oenothera mckelveyae (Munz) W.L. Wagner & Hoch -- accepted -- Mckelvey's beeblossom
  Oenothera megalantha (Munz) P.H. Raven -- not accepted
  Oenothera mexicana Spach -- accepted -- Mexican evening primrose, Mexican evening-primrose, Mexican eveningprimrose
  Oenothera micrantha Hornem. ex Spreng. -- not accepted
  Oenothera micrantha var. exfoliata (A. Nelson) Munz -- not accepted
  Oenothera micrantha var. ignota Jeps. -- not accepted
  Oenothera micrantha var. jonesii (H. Lév.) Munz -- not accepted
  Oenothera minor (A. Nelson) Munz -- not accepted
  Oenothera minor var. cusickii Munz -- not accepted
  Oenothera missouriensis Sims -- not accepted
  Oenothera missouriensis var. incana A. Gray -- not accepted
  Oenothera missouriensis var. oklahomensis (Norton) Munz -- not accepted
  Oenothera mollissima L. -- accepted -- Argentine evening primrose, Argentine evening-primrose
  Oenothera multijuga S. Watson -- not accepted
  Oenothera multijuga var. orientalis Munz -- not accepted
  Oenothera multijuga var. parviflora (S. Watson) Munz -- not accepted
  Oenothera multijuga var. typica Munz -- not accepted
  Oenothera munzii P.H. Raven -- not accepted
  Oenothera murdockii S.L. Welsh & N.D. Atwood -- accepted -- Murdock's evening primrose
  Oenothera muricata L. -- not accepted
  Oenothera neomexicana (Small) Munz -- accepted -- New Mexico evening primrose, New Mexico evening-primrose, New Mexico eveningprimrose
  Oenothera nevadensis Kellogg -- not accepted
  Oenothera nutans G.F. Atk. & Bartlett -- accepted -- nodding evening primrose, nodding evening-primrose
  Oenothera nuttallii Sweet -- accepted -- Nuttall's evening primrose, Nuttall's evening-primrose
  Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson & J.M. Coult. -- accepted -- Oakes' evening primrose, Oakes' evening-primrose
  Oenothera organensis Munz -- accepted -- Organ Mountain evening primrose, Organ Mountain evening-primrose, Organ Mountain eveningprimrose
  Oenothera ornata (A. Nelson) Rydb. -- not accepted
  Oenothera ovata Nutt. ex Torr. & A. Gray -- not accepted
  Oenothera pallida Lindl. -- accepted -- pale evening primrose, pale evening-primrose, pale eveningprimrose
  Oenothera pallida ssp. gypsophila (Eastw.) Munz & W.M. Klein -- not accepted -- whitepole evening primrose, whitepole evening-primrose, whitepole eveningprimrose
  Oenothera pallida ssp. latifolia (Rydb.) Munz -- accepted -- mountain evening primrose
  Oenothera pallida ssp. pallida Lindl. -- accepted -- pale evening primrose, pale evening-primrose, pale eveningprimrose
  Oenothera pallida ssp. runcinata (Engelm.) Munz & W.M. Klein -- accepted -- pale evening primrose, pale evening-primrose, pale eveningprimrose
  Oenothera pallida ssp. trichocalyx (Nutt.) Munz & W.M. Klein -- accepted -- pale evening primrose, pale evening-primrose
  Oenothera pallida var. idahoensis Munz -- not accepted
  Oenothera pallida var. runcinata (Engelm.) Cronquist -- not accepted
  Oenothera pallida var. trichocalyx (Nutt.) Dorn -- not accepted
  Oenothera pallida var. typica Munz -- not accepted
  Oenothera pallidula (Munz) Munz -- not accepted
  Oenothera palmeri S. Watson -- not accepted
  Oenothera parryi S. Watson -- not accepted
  Oenothera parviflora L. -- accepted -- northern evening primrose, northern evening-primrose
  Oenothera parviflora ssp. angustissima (R.R. Gates) Munz -- not accepted
  Oenothera parviflora var. angustissima (R.R. Gates) Wiegand -- not accepted
  Oenothera parviflora var. oakesiana (A. Gray) Fernald -- not accepted
  Oenothera parvula Nutt. ex Torr. & A. Gray -- not accepted
  Oenothera patriciae W.L. Wagner & Hoch -- accepted -- plains beeblossom
  Oenothera perennis L. -- accepted -- little evening primrose, little evening-primrose
  Oenothera perennis var. rectipilis (S.F. Blake) S.F. Blake -- not accepted
  Oenothera perennis var. typica Munz -- not accepted
  Oenothera pilosella Raf. -- accepted -- meadow evening primrose, meadow evening-primrose, meadow eveningprimrose
  Oenothera pilosella ssp. pilosella Raf. -- accepted -- meadow evening primrose, meadow evening-primrose
  Oenothera pilosella ssp. sessilis (Pennell) Straley -- accepted -- meadow evening primrose, meadow evening-primrose, meadow eveningprimrose
  Oenothera platanorum P.H. Raven & D.R. Parn. -- accepted -- Fort Huachuca evening primrose, Fort Huachuca evening-primrose
  Oenothera primiveris A. Gray -- accepted -- desert evening primrose, desert evening-primrose, desert eveningprimrose
  Oenothera primiveris ssp. bufonis (M.E. Jones) Munz -- not accepted -- desert evening primrose, desert evening-primrose, desert eveningprimrose
  Oenothera primiveris ssp. caulescens (Munz) Munz -- not accepted
  Oenothera primiveris ssp. primiveris A. Gray -- not accepted -- desert evening primrose, desert evening-primrose, desert eveningprimrose
  Oenothera primiveris var. bufonis (M.E. Jones) Cronquist -- not accepted
  Oenothera primiveris var. caulescens Munz -- not accepted
  Oenothera pringlei (Munz) Munz -- not accepted
  Oenothera procera Wooton & Standl. -- not accepted
  Oenothera psammophila (A. Nelson & J.F. Macbr.) W.L. Wagner, Stockh. & W.M. Klein -- accepted -- St. Anthony Dunes evening primrose, St. Anthony Dunes evening-primrose
  Oenothera pterosperma S. Watson -- not accepted
  Oenothera pubens (S. Watson) Munz -- not accepted
  Oenothera pubescens Willd. ex Spreng. -- accepted -- silky evening primrose, South American evening primrose, South American evening-primrose, South American eveningprimrose
  Oenothera pycnocarpa G.F. Atk. & Bartlett -- not accepted
  Oenothera pygmaea Douglas ex Lehm. -- not accepted
  Oenothera refracta S. Watson -- not accepted
  Oenothera rhombipetala auct. non Nutt. ex Torr. & A. Gray -- not accepted -- fourpoint eveningprimrose
  Oenothera rhombipetala Nutt. ex Torr. & A. Gray -- accepted -- fourpoint evening primrose, fourpoint evening-primrose, fourpoint eveningprimrose, greater four-point evening-primrose
  Oenothera riparia Nutt. -- accepted
  Oenothera rosea L'Hér. ex Aiton -- accepted -- rose evening primrose, rose evening-primrose, rose eveningprimrose
  Oenothera rubricapitata R.R. Gates -- not accepted
  Oenothera runcinata (Engelm.) Munz -- not accepted
  Oenothera runcinata var. brevifolia (Engelm.) Munz -- not accepted
  Oenothera runcinata var. gypsophila (Eastw.) Munz -- not accepted
  Oenothera runcinata var. leucotricha (Wooton & Standl.) Munz -- not accepted
  Oenothera runcinata var. typica Munz -- not accepted
  Oenothera rydbergii House -- not accepted
  Oenothera scapoidea Torr. & A. Gray -- not accepted
  Oenothera scapoidea ssp. brachycarpa P.H. Raven -- not accepted
  Oenothera scapoidea ssp. macrocarpa P.H. Raven -- not accepted
  Oenothera scapoidea ssp. utahensis P.H. Raven -- not accepted
  Oenothera scapoidea var. eastwoodiae Munz -- not accepted
  Oenothera scapoidea var. purpurascens S. Watson -- not accepted
  Oenothera scapoidea var. seorsa (A. Nelson) Munz -- not accepted
  Oenothera scapoidea var. tortilis Jeps. -- not accepted
  Oenothera serrulata Nutt. -- accepted
  Oenothera serrulata ssp. drummondii (Torr. & A. Gray) Munz -- not accepted
  Oenothera serrulata ssp. pinifolia (Engelm. ex A. Gray) Munz -- not accepted
  Oenothera serrulata var. typica Munz -- not accepted
  Oenothera sessilis (Pennell) Munz -- not accepted
  Oenothera simsiana auct. non Ser. -- not accepted
  Oenothera simulans (Small) W.L. Wagner & Hoch -- accepted -- southern beeblossom
  Oenothera sinuosa W.L. Wagner & Hoch -- accepted -- wavyleaf beeblossom
  Oenothera spachiana Torr. & A. Gray -- accepted -- Spach's evening primrose, Spach's evening-primrose, Spach's eveningprimrose
  Oenothera speciosa Nutt. -- accepted -- pinkladies, Showy evening primrose, showy eveningprimrose
  Oenothera speciosa var. childsii (L.H. Bailey) Munz -- not accepted
  Oenothera specuicola P.H. Raven -- not accepted
  Oenothera specuicola ssp. hesperia P.H. Raven -- not accepted
  Oenothera stricta Ledeb. ex Link -- accepted -- Chilean evening primrose, Chilean evening-primrose
  Oenothera stricta ssp. stricta Ledeb. ex Link -- accepted -- evening primrose
  Oenothera strigosa (Rydb.) Mack. & Bush -- not accepted
  Oenothera strigosa ssp. canovirens (E.S. Steele) Munz -- not accepted
  Oenothera strigosa ssp. cheradophila (Bartlett) Munz -- not accepted
  Oenothera strigulosa (Fisch. & C.A. Mey.) Torr. & A. Gray -- not accepted
  Oenothera strigulosa var. pubens S. Watson -- not accepted
  Oenothera subacaulis (Pursh) Garrett -- not accepted
  Oenothera suffrutescens (Ser.) W.L. Wagner & Hoch -- accepted -- scarlet beeblossom
  Oenothera suffulta (Engelm.) W.L. Wagner & Hoch -- accepted -- kisses
  Oenothera suffulta ssp. nealleyi (J.M. Coult.) W.L. Wagner & Hoch -- accepted -- Nealley's kisses
  Oenothera suffulta ssp. suffulta (Engelm.) W.L. Wagner & Hoch -- accepted -- kisses
  Oenothera tanacetifolia Torr. & A. Gray -- not accepted
  Oenothera taraxacoides (Wooton & Standl.) Munz -- not accepted
  Oenothera tetragona Roth -- not accepted
  Oenothera tetragona ssp. glauca (Michx.) Munz -- not accepted
  Oenothera tetragona var. brevistipata (Pennell) Munz -- not accepted
  Oenothera tetragona var. fraseri (Pursh) Munz -- not accepted
  Oenothera tetragona var. hybrida (Michx.) Fernald -- not accepted
  Oenothera tetragona var. latifolia (Rydb.) Fernald -- not accepted
  Oenothera tetragona var. longistipata (Pennell) Munz -- not accepted
  Oenothera tetragona var. riparia (Nutt.) Munz -- not accepted
  Oenothera tetragona var. sharpii Munz -- not accepted
  Oenothera tetragona var. velutina (Pennell) Munz -- not accepted
  Oenothera tetraptera Cav. -- accepted -- fourwing evening primrose, fourwing evening-primrose, fourwing eveningprimrose
  Oenothera texensis P.H. Raven & D.R. Parn. -- accepted -- Texas evening primrose, Texas evening-primrose, Texas eveningprimrose
  Oenothera toumeyi (Small) Tidestr. -- accepted -- Toumey's sundrops
  Oenothera triangulata (Buckley) W.L. Wagner & Hoch -- accepted -- prairie beeblossom
  Oenothera trichocalyx Nutt. -- not accepted
  Oenothera triloba Nutt. -- accepted -- stemless evening primrose, stemless evening-primrose, stemless eveningprimrose
  Oenothera tubicula A. Gray -- accepted -- Texas sundrops
  Oenothera tubicula ssp. tubicula A. Gray -- accepted -- Texas sundrops
  Oenothera tubicula var. filifolia Eastw. -- not accepted
  Oenothera villosa Thunb. -- accepted -- hairy evening primrose, hairy evening-primrose, hairy eveningprimrose
  Oenothera villosa ssp. canovirens (Steele) W. Dietr. & P.H. Raven -- not accepted
  Oenothera villosa ssp. cheradophila (Bartlett) W. Dietr. & P.H. Raven -- not accepted
  Oenothera villosa ssp. strigosa (Rydb.) W. Dietr. & P.H. Raven -- accepted -- hairy evening primrose, hairy evening-primrose, hairy eveningprimrose
  Oenothera villosa ssp. villosa Thunb. -- accepted -- hairy evening primrose, hairy evening-primrose
  Oenothera villosa var. strigosa (Rydb.) Dorn -- not accepted
  Oenothera walkeri (A. Nelson) P.H. Raven -- not accepted
  Oenothera walkeri ssp. tortilis (Jeps.) P.H. Raven -- not accepted
  Oenothera wolfii (Munz) P.H. Raven, W. Dietr. & Stubblef. -- accepted -- Wolf's evening primrose, Wolf's evening-primrose
  Oenothera xenogaura W.L. Wagner & Hoch -- accepted -- Drummond's beeblossom
  Oenothera xylocarpa Coville -- accepted -- woodyfruit evening primrose, woodyfruit evening-primrose, woodyfruit eveningprimrose
  Onagraceae -- accepted -- evening primroses, onagres
  Pachylophis caespitosus (Nutt.) Raim. -- not accepted
  Pachylophis cespitosus (Nutt.) Raim. -- not accepted
  Pachylophis montanus (Nutt.) A. Nelson -- not accepted
  Peniophyllum linifolium (Nutt.) Pennell -- not accepted
  Raimannia curtissii Rose -- not accepted
  Raimannia drummondii (Hook.) Rose -- not accepted
  Raimannia grandis (Britton) Rose -- not accepted
  Raimannia humifusa (Nutt.) Rose -- not accepted
  Raimannia laciniata (Hill) Rose -- not accepted
  Raimannia mollissima auct. non (L.) Sprague & L. Riley -- not accepted
  Raimannia rhombipetala (Nutt. ex Torr. & A. Gray) Rose -- not accepted
  Salpingia hartwegii (Benth.) Raim. -- not accepted
  Sphaerostigma hallii Davidson -- not accepted
  Sphaerostigma minor A. Nelson -- not accepted
  Sphaerostigma pallidum Abrams -- not accepted
  Sphaerostigma strigulosa Fisch. & C.A. Mey. -- not accepted
  Stenosiphon Spach -- not accepted
  Stenosiphon linifolius (Nutt. ex E. James) Heynh. -- not accepted -- false gaura, Stenosiphon
  Stenosiphon virgatus Spach -- not accepted
  Taraxia (Nutt. ex Torr. & A. Gray) Raim. -- accepted
  Taraxia breviflora (Torr. & A. Gray) Nutt. ex Small -- accepted -- fewflower evening primrose
  Taraxia ovata (Nutt.) Small -- accepted -- goldeneggs
  Taraxia subacaulis (Pursh) Rydb. -- accepted -- diffuseflower evening primrose
  Taraxia tanacetifolia (Torr. & A. Gray) Piper -- accepted -- tansyleaf evening primrose
  Tetrapteron (Munz) W.L. Wagner & Hoch -- accepted
  Tetrapteron graciliflorum (Hook. & Arn.) W.L. Wagner & Hoch -- accepted -- hill suncup
  Tetrapteron palmeri (S. Watson) W.L. Wagner & Hoch -- accepted -- Palmer's evening primrose
  Zauschneria californica C. Presl -- not accepted
  Zauschneria californica ssp. angustifolia D.D. Keck -- not accepted
  Zauschneria californica ssp. latifolia (Hook.) D.D. Keck -- not accepted
  Zauschneria californica ssp. mexicana (C. Presl) P.H. Raven -- not accepted
  Zauschneria californica var. villosa (Greene) Jeps. -- not accepted
  Zauschneria cana Greene -- not accepted
  Zauschneria garrettii A. Nelson -- not accepted
  Zauschneria latifolia (Hook.) Greene -- not accepted
  Zauschneria latifolia var. arizonica (Davidson) Hilend -- not accepted
  Zauschneria latifolia var. garrettii (A. Nelson) Hilend -- not accepted
  Zauschneria septentrionalis D.D. Keck -- not accepted
   

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