The ITIS Logo The Search Results banner for the ITIS Data pages

Taxon author: Hook. & Arn.

ITIS records citing taxon author "Hook. & Arn."
 
 Kingdom Plantae
  Abutilon pictum (Gillies ex Hook. & Arn.) Walp. -- accepted -- painted Indian mallow
  Acacia cavenia (Molina) Hook. & Arn. -- not accepted
  Acer drummondii Hook. & Arn. ex Nutt. -- not accepted
  Acer rubrum ssp. drummondii (Hook. & Arn. ex Nutt.) E. Murray -- not accepted
  Acer rubrum var. drummondii (Hook. & Arn. ex Nutt.) Sarg. -- accepted -- Drummond's maple
  Acmella pusilla (Hook. & Arn.) R.K. Jansen -- accepted -- dwarf spotflower
  Adenostoma Hook. & Arn. -- accepted -- chamise
  Adenostoma fasciculatum Hook. & Arn. -- accepted -- chamise
  Adenostoma fasciculatum var. fasciculatum Hook. & Arn. -- accepted -- chamise, common chamise
  Adesmia angustifolia Hook. & Arn. -- not accepted
  Adesmia microphylla Hook. & Arn. -- accepted -- pahuen, palhuen, varilla
  Adesmia tenella Hook. & Arn. -- accepted
  Allium falcifolium Hook. & Arn. -- accepted -- scytheleaf onion
  Allocarya scouleri (Hook. & Arn.) Greene -- not accepted
  Alsia californica (Hook. & Arnott) Sull. -- accepted -- California alsia moss
  Amblyopappus Hook. & Arn. -- accepted -- amblyopappus
  Amblyopappus pusillus Hook. & Arn. -- accepted -- dwarf coastweed
  Amsinckia vernicosa Hook. & Arn. -- accepted -- green fiddleneck
  Amsinckia vernicosa var. vernicosa Hook. & Arn. -- accepted -- green fiddleneck
  Andropogon tahitensis Hook. & Arn. -- not accepted
  Anemopsis Hook. & Arn. -- accepted -- yerba mansa
  Anemopsis californica (Nutt.) Hook. & Arn. -- accepted -- yerba mansa, yerba-mansa
  Anemopsis californica var. californica (Nutt.) Hook. & Arn. -- not accepted -- yerba mansa
  Anisophyllum multiforme (Gaudich. ex Hook. & Arn.) Klotzsch & Garcke -- not accepted
  Anoda lanceolata Hook. & Arn. -- accepted -- lanceleaf anoda
  Antigonon leptopus Hook. & Arn. -- accepted -- confederate vine, coral vine, Mexican coral vine, Mexican creeper, queen's jewels, queen's wreath
  Arabis blepharophylla Hook. & Arn. -- accepted -- coast rockcress, rose rockcress
  Asarina stricta (Hook. & Arn.) Pennell -- not accepted
  Asclepias vestita Hook. & Arn. -- accepted -- woolly milkweed
  Asclepias vestita ssp. vestita Hook. & Arn. -- accepted -- woolly milkweed
  Asplenium acuminatum Hook. & Arn. -- accepted -- tapertip spleenwort
  Aster filaginifolius Hook. & Arn. -- not accepted
  Aster vahlii (Gaudich.) Hook. & Arn. -- not accepted
  Astragalus didymocarpus Hook. & Arn. -- accepted -- dwarf white milkvetch
  Astragalus didymocarpus var. didymocarpus Hook. & Arn. -- accepted -- dwarf white milkvetch
  Astragalus macrodon (Hook. & Arn.) A. Gray -- accepted -- Salinas milkvetch
  Atamisquea Miers ex Hook. & Arn. -- accepted
  Atamisquea emarginata Miers ex Hook. & Arn. -- accepted -- atamisquea, vomitbush
  Boehmeria densiflora Hook. & Arn. -- accepted
  Boehmeria grandis (Hook. & Arn.) A. Heller -- accepted -- Hawai'i false nettle
  Briza stricta (Hook. & Arn.) Steud. -- not accepted
  Briza stricta var. stricta (Hook. & Arn.) Steud. -- not accepted
  Brizopyrum douglasii (Nees) Hook. & Arn. -- not accepted
  Brizopyrum spicatum (L.) Hook. & Arn. -- not accepted
  Bromus carinatus Hook. & Arn. -- accepted -- California brome, mountain brome
  Bromus carinatus var. carinatus Hook. & Arn. -- accepted
  California macrophylla (Hook. & Arn.) Aldasoro, C. Navarro, P. Vargas, L. Sáez & Aedo -- not accepted
  Calochortus tolmiei Hook. & Arn. -- accepted -- Tolmie star-tulip
  Calochortus uniflorus Hook. & Arn. -- accepted -- Monterey mariposa lily
  Calotheca stricta Hook. & Arn. -- not accepted
  Calotheca stricta var. stricta Hook. & Arn. -- not accepted
  Calycanthus occidentalis Hook. & Arn. -- accepted -- California spicebush, California-allspice, western sweetshrub
  Calystegia subacaulis Hook. & Arn. -- accepted -- hillside false bindweed
  Calystegia subacaulis ssp. subacaulis Hook. & Arn. -- accepted -- hillside false bindweed
  Camissonia boothii ssp. alyssoides (Hook. & Arn.) P.H. Raven -- not accepted -- alyssum evening primrose, alyssum evening-primrose, alyssum eveningprimrose
  Camissonia boothii ssp. decorticans (Hook. & Arn.) P.H. Raven -- not accepted -- shredding suncup
  Camissonia boothii var. alyssoides (Hook. & Arn.) N.H. Holmgren & P.K. Holmgren -- not accepted
  Camissonia boothii var. decorticans (Hook. & Arn.) Cronquist -- not accepted
  Camissonia graciliflora (Hook. & Arn.) P.H. Raven -- not accepted -- hill suncup
  Canavalia pubescens Hook. & Arn. -- accepted -- awikiwiki, lavafield jackbean
  Carex gmelinii Hook. & Arn. -- accepted -- Gmelin's sedge
  Carum gairdneri (Hook. & Arn.) A. Gray -- not accepted
  Cassia gaudichaudii Hook. & Arn. -- not accepted
  Castilleja affinis Hook. & Arn. -- accepted -- coast Indian paintbrush
  Castilleja affinis Hook. & Arn. -- not accepted
  Castilleja affinis ssp. affinis Hook. & Arn. -- accepted -- coast Indian paintbrush
  Castilleja ambigua Hook. & Arn. -- accepted -- johnny-nip
  Castilleja ambigua ssp. ambigua Hook. & Arn. -- accepted -- johnny-nip
  Castilleja foliolosa Hook. & Arn. -- accepted -- Texas Indian paintbrush
  Castilleja latifolia Hook. & Arn. -- accepted -- Monterey Indian paintbrush
  Castilleja latifolia Hook. & Arn. -- not accepted
  Caucalis microcarpa Hook. & Arn. -- not accepted
  Caulanthus lasiophyllus (Hook. & Arn.) Payson -- accepted -- California mustard
  Caulanthus lasiophyllus var. lasiophyllus (Hook. & Arn.) Payson -- not accepted -- coast range wild cabbage
  Ceanothus integerrimus Hook. & Arn. -- accepted -- deerbrush, deerbrush ceanothus
  Ceanothus oliganthus ssp. sorediatus (Hook. & Arn.) C.L. Schmidt -- not accepted
  Ceanothus oliganthus var. sorediatus (Hook. & Arn.) Hoover -- not accepted -- jim-brush
  Ceanothus sorediatus Hook. & Arn. -- accepted -- jimbrush
  Centromadia pungens (Hook. & Arn.) Greene -- accepted -- pungent false tarplant
  Centromadia pungens ssp. pungens (Hook. & Arn.) Greene -- accepted -- common tarweed
  Cerasus ilicifolia Nutt. ex Hook. & Arn. -- not accepted
  Ceratochloa carinata (Hook. & Arn.) Tutin -- not accepted
  Cercocarpus parvifolius Nutt. ex Hook. & Arn. -- not accepted
  Chaenactis douglasii (Hook.) Hook. & Arn. -- accepted -- Douglas dustymaiden, Douglas' dustymaiden, Douglas' pincushion, dusty maiden, dusty-maiden
  Chaenactis douglasii var. achilleifolia (Hook. & Arn.) A. Gray -- not accepted
  Chaenactis douglasii var. douglasii (Hook.) Hook. & Arn. -- accepted -- Douglas' dustymaiden, dusty-maiden
  Chaenactis stevioides Hook. & Arn. -- accepted -- Esteve's pincushion, Steve's dusty maiden, Steve's dustymaiden, Steve's pincushion
  Chamaesyce bifida (Hook. & Arn.) T. Kuros. -- not accepted
  Chamaesyce clusiifolia (Hook. & Arn.) Arthur -- not accepted -- forest sandmat
  Chamaesyce multiformis (Gaudich. ex Hook. & Arn.) Croizat & O. Deg. -- not accepted -- variable sandmat
  Chamaesyce multiformis var. multiformis (Gaudich. ex Hook. & Arn.) Croizat & O. Deg. -- not accepted -- variable sandmat
  Chamaesyce vachellii (Hook. & Arn.) H. Hara -- not accepted
  Chascolytrum strictum (Hook. & Arn.) E. Desv. -- not accepted
  Cheirodendron platyphyllum (Hook. & Arn.) Seem. -- accepted -- lapalapa
  Cheirodendron platyphyllum ssp. platyphyllum (Hook. & Arn.) Seem. -- accepted -- lapalapa
  Cibotium glaucum (Sm.) Hook. & Arn. -- accepted -- hapu'u
  Claytonia spathulata var. exigua (Torr. & A. Gray) Hook. & Arn. -- not accepted
  Columnea villosa (Hook. & Arn.) Kuntze -- not accepted
  Convolvulus subacaulis (Hook. & Arn.) Greene -- not accepted
  Corculum leptopum (Hook. & Arn.) Stuntz -- not accepted
  Corculum leptopus (Hook. & Arn.) Stuntz -- not accepted
  Corethrogyne filaginifolia (Hook. & Arn.) Nutt. -- accepted -- California sandaster, common sandaster, whiteleaf sandaster
  Corethrogyne filaginifolia var. filaginifolia (Hook. & Arn.) Nutt. -- not accepted -- common sandaster
  Corethrogyne tomentella (Hook. & Arn.) Torr. & A. Gray -- not accepted
  Corytholoma strictum (Hook. & Arn.) Decne. -- not accepted
  Crassula erecta (Hook. & Arn.) A. Berger -- not accepted
  Crataegus opaca Hook. & Arn. -- accepted -- apple haw, riverflat hawthorn, western mayhaw
  Crotalaria longirostrata Hook. & Arn. -- accepted -- longbeak rattlebox
  Croton polystachyus Hook. & Arn. -- not accepted
  Cryptantha circumscissa (Hook. & Arn.) I.M. Johnst. -- accepted -- cushion catseye, cushion cryptantha, matted cryptantha
  Cryptantha circumscissa var. circumscissa (Hook. & Arn.) I.M. Johnst. -- accepted -- cushion catseye, cushion cryptantha
  Cryptantha muricata (Hook. & Arn.) A. Nelson & J.F. Macbr. -- accepted -- pointed catseye, pointed cryptantha, prickly cryptantha
  Cryptantha muricata var. muricata (Hook. & Arn.) A. Nelson & J.F. Macbr. -- not accepted -- pointed cryptantha
  Ctenitis squamigera (Hook. & Arn.) Copel. -- accepted -- Pacific lacefern, Pauoa
  Cuscuta californica Hook. & Arn. -- accepted -- California dodder, chaparral dodder
  Cuscuta californica var. californica Hook. & Arn. -- accepted -- California dodder, chaparral dodder
  Cynoglossum penicillatum Hook. & Arn. -- not accepted
  Cyperus trachysanthos Hook. & Arn. -- accepted -- Pu`uka`a, sticky flatsedge
  Cyrtandra biflora Hook. & Arn. -- not accepted
  Cyrtandra menziesii Hook. & Arn. -- accepted -- ha`iwale
  Cyrtandra triflora Hook. & Arn. -- not accepted
  Desmodium cuneatum Hook. & Arn. -- accepted
  Dianella sandwicensis Hook. & Arn. -- accepted -- `uki`uki
  Dicentra chrysantha (Hook. & Arn.) Walp. -- accepted -- golden eardrops
  Distasis concinna Hook. & Arn. -- not accepted
  Dryopteris crinalis (Hook. & Arn.) C. Chr. -- accepted -- serpent woodfern
  Dryopteris crinalis var. crinalis (Hook. & Arn.) C. Chr. -- accepted
  Dryopteris sandwicensis (Hook. & Arn.) C. Chr. -- accepted -- Pacific woodfern
  Dryopteris unidentata (Hook. & Arn.) C. Chr. -- accepted -- onetooth woodfern
  Dryopteris unidentata var. unidentata (Hook. & Arn.) C. Chr. -- accepted
  Dubautia laxa Hook. & Arn. -- accepted -- na`ena`e pua melemele
  Dubautia laxa ssp. laxa Hook. & Arn. -- accepted -- na`ena`e pua melemele
  Dupontia fisheri var. flavescens Hook. & Arn. -- not accepted
  Dupontia psilosantha var. flavescens (Hook. & Arn.) Vasey -- not accepted
  Ehrendorferia chrysantha (Hook. & Arn.) Rylander -- not accepted -- golden eardrops
  Elaeocarpus bifidus Hook. & Arn. -- accepted -- kalia
  Enemion occidentale (Hook. & Arn.) J.R. Drumm. & Hutch. -- accepted -- western false rue anemone
  Eremothera boothii ssp. alyssoides (Hook. & Arn.) W.L. Wagner & Hoch -- accepted -- alyssum evening primrose
  Eremothera boothii ssp. decorticans (Hook. & Arn.) W.L. Wagner & Hoch -- accepted -- shredding suncup
  Erigeron concinnus (Hook. & Arn.) Torr. & A. Gray -- accepted -- hairy daisy, Navajo fleabane
  Erigeron concinnus var. concinnus (Hook. & Arn.) Torr. & A. Gray -- accepted -- Navajo daisy, Navajo fleabane
  Erigeron pumilus var. concinnus (Hook. & Arn.) Dorn -- not accepted
  Erigeron velutipes Hook. & Arn. -- accepted -- Chihuahuan fleabane
  Eriodictyon californicum (Hook. & Arn.) Torr. -- accepted -- California yerba santa
  Erodium macrophyllum Hook. & Arn. -- accepted -- roundleaf stork's bill
  Erodium macrophyllum var. macrophyllum Hook. & Arn. -- accepted -- roundleaf stork's bill
  Eryngium divaricatum Hook. & Arn. -- accepted -- ballast eryngo
  Escallonia macrantha Hook. & Arn. -- not accepted
  Escallonia rubra var. macrantha (Hook. & Arn.) Reiche -- accepted -- redclaws
  Eubrachion ambiguum (Hook. & Arn.) Engl. -- accepted -- tapeworm-plant
  Eunanus nanus (Hook. & Arn.) Holz. -- not accepted
  Eunanus subuniflorus (Hook. & Arn.) Greene -- not accepted
  Euphorbia bifida Hook. & Arn. -- accepted
  Euphorbia bifida auct. non Hook. & Arn. -- not accepted
  Euphorbia clusiifolia Hook. & Arn. -- accepted -- forest sandmat
  Euphorbia lathyris var. minor Hook. & Arn. -- not accepted
  Euphorbia multiformis Gaudich. ex Hook. & Arn. -- accepted -- variable sandmat
  Euphorbia multiformis var. multiformis Gaudich. ex Hook. & Arn. -- accepted -- variable sandmat
  Euphorbia myrtifolia Hook. & Arn. -- not accepted
  Euphorbia ramosissima Hook. & Arn. -- not accepted
  Euphorbia rotundifolia Hook. & Arn. -- not accepted
  Euphorbia strigosa Hook. & Arn. -- accepted
  Euphorbia vachellii Hook. & Arn. -- not accepted
  Exacum inflatum Hook. & Arn. -- not accepted
  Ferula macrocarpa Hook. & Arn. -- not accepted
  Fraxinus dipetala Hook. & Arn. -- accepted -- California ash, two-petal ash
  Galium californicum Hook. & Arn. -- accepted -- California bedstraw
  Galium californicum ssp. californicum Hook. & Arn. -- accepted -- California bedstraw
  Gaura decorticans Hook. & Arn. -- not accepted
  Gayophytum micranthum Hook. & Arn. -- accepted
  Geoffroea decorticans (Gillies ex Hook. & Arn.) Burkart -- accepted -- chañar
  Gesneria stricta Hook. & Arn. -- not accepted
  Gilia squarrosa (Eschsch.) Hook. & Arn. -- not accepted
  Gnaphalium alienum Hook. & Arn. -- not accepted
  Godetia parviflora (Hook. & Arn.) Jeps. -- not accepted
  Gouldia terminalis (Hook. & Arn.) Hillebr. -- not accepted
  Gouldia terminalis var. coriacea (Hook. & Arn.) Fosberg -- not accepted
  Gourliea decorticans Gillies ex Hook. & Arn. -- not accepted
  Grayia Hook. & Arn. -- accepted -- hopsage
  Greeneocharis circumscissa (Hook. & Arn.) Rydb. -- not accepted
  Grindelia hirsutula Hook. & Arn. -- accepted -- bract gumweed, hairy gumweed, sharpleaf gumweed
  Grindelia hirsutula ssp. hirsutula Hook. & Arn. -- not accepted -- hairy gumweed
  Grindelia hirsutula var. hirsutula Hook. & Arn. -- not accepted -- hairy gumweed
  Grindelia humilis Hook. & Arn. -- not accepted
  Grossularia californica (Hook. & Arn.) Coville & Britton -- not accepted
  Guillenia lasiophylla (Hook. & Arn.) Greene -- not accepted -- California mustard, coast wild cabbage, hairyleaf wildcabbage
  Gymnosteris nudicaulis (Hook. & Arn.) Greene -- accepted -- nakedstem gymnosteris
  Haplopappus ericoides (Less.) Hook. & Arn. -- not accepted
  Haplopappus ericoides var. ericoides (Less.) Hook. & Arn. -- not accepted
  Haplopappus squarrosus Hook. & Arn. -- not accepted
  Haplopappus squarrosus var. squarrosus Hook. & Arn. -- not accepted
  Hazardia squarrosa (Hook. & Arn.) Greene -- accepted -- sawtooth goldenbush
  Hazardia squarrosa var. squarrosa (Hook. & Arn.) Greene -- accepted -- sawtooth goldenbush
  Hedyotis centranthoides (Hook. & Arn.) Steud. -- not accepted -- forest starviolet
  Hedyotis terminalis (Hook. & Arn.) W.L. Wagner & D.R. Herbst -- not accepted -- variable starviolet
  Heliotropium anomalium Hook. & Arn. -- not accepted
  Heliotropium anomalum Hook. & Arn. -- accepted -- Polynesian heliotrope
  Heliotropium anomalum var. anomalum Hook. & Arn. -- accepted -- Polynesian heliotrope
  Hemizonia multicaulis Hook. & Arn. -- not accepted
  Hemizonia multicaulis var. multicaulis Hook. & Arn. -- not accepted
  Hemizonia pugens (Hook. & Arn.) Torr. & A. Gray -- not accepted
  Hemizonia pugens var. pugens (Hook. & Arn.) Torr. & A. Gray -- not accepted
  Hemizonia pungens (Hook. & Arn.) Torr. & A. Gray -- not accepted -- common spikeweed, common tarweed, spikeweed
  Hemizonia pungens ssp. pungens (Hook. & Arn.) Torr. & A. Gray -- not accepted -- common tarweed, spikeweed
  Heterocentron Hook. & Arn. -- accepted
  Hibiscus furcellatus var. youngianus (Gaudich. ex Hook. & Arn.) Hochr. -- accepted -- lindenleaf rosemallow
  Hibiscus youngianus Gaudich. ex Hook. & Arn. -- not accepted
  Hoita strobilina (Hook. & Arn.) Rydb. -- accepted -- Loma prieta
  Holozonia filipes (Hook. & Arn.) Greene -- accepted -- whitecrown
  Horkelia fusca ssp. parviflora (Nutt. ex Hook. & Arn.) D.D. Keck -- not accepted -- smallflower horkelia
  Horkelia fusca var. parviflora (Nutt. ex Hook. & Arn.) Wawra -- accepted
  Horkelia parviflora Nutt. ex Hook. & Arn. -- not accepted
  Hosackia tomentosa Hook. & Arn. -- not accepted
  Hosackia tomentosa ssp. glabriuscula (Hook. & Arn.) Abrams -- not accepted
  Huperzia phyllantha (Hook. & Arn.) Holub -- accepted -- daggerleaf clubmoss
  Hymenophyllum lanceolatum Hook. & Arn. -- accepted -- palaihinahina
  Hymenophyllum obtusum Hook. & Arn. -- accepted -- palailaulii
  Hypochaeris brasiliensis var. tweediei (Hook. & Arn.) Baker -- not accepted
  Hypochaeris brasiliensis var. tweedyi (Hook. & Arn.) Baker -- not accepted -- Tweedy's catsear
  Hypochaeris tweediei Hook. & Arn. -- not accepted
  Hypochaeris tweedyi Hook. & Arn. -- not accepted
  Hypocyrta villosa Hook. & Arn. -- not accepted
  Ilex anomala Hook. & Arn. -- accepted -- Hawai'i holly
  Ischaemum aureum (Hook. & Arn.) Hack. -- accepted -- golden duckbeakgrass
  Isocoma menziesii (Hook. & Arn.) G.L. Nesom -- accepted -- Menzies' goldenbush
  Isocoma menziesii var. menziesii (Hook. & Arn.) G.L. Nesom -- accepted -- Menzies' goldenbush
  Isolepis carinata Hook. & Arn. ex Torr. -- accepted -- keeled bulrush
  Isopyrum occidentale Hook. & Arn. -- not accepted
  Kadua centranthoides Hook. & Arn. -- accepted
  Kallstroemia maxima (L.) Hook. & Arn. -- accepted -- big caltrop
  Lathyrus pubescens Hook. & Arn. -- accepted
  Layia Hook. & Arn. ex DC. -- accepted -- tidytips
  Layia gaillardioides (Hook. & Arn.) DC. -- accepted -- woodland tidytips
  Layia glandulosa (Hook.) Hook. & Arn. -- accepted -- white tidytips, whitedaisy tidytips
  Layia glandulosa ssp. glandulosa (Hook.) Hook. & Arn. -- not accepted -- whitedaisy tidytips
  Layia heterotricha (DC.) Hook. & Arn. -- accepted -- paleyellow tidytips
  Layia hieracioides (DC.) Hook. & Arn. -- accepted -- tall tidytips
  Leptodactylon Hook. & Arn. -- accepted -- prickly gilia, prickly phlox
  Leptodactylon californicum Hook. & Arn. -- accepted -- California prickly phlox
  Leptodactylon californicum ssp. californicum Hook. & Arn. -- accepted -- California prickly phlox
  Lespedeza striata (Thunb.) Hook. & Arn. -- not accepted
  Lessingia filaginifolia (Hook. & Arn.) M.A. Lane -- not accepted
  Lessingia filaginifolia var. filaginifolia (Hook. & Arn.) M.A. Lane -- not accepted
  Lilaeopsis attenuata auct. non (Hook. & Arn.) Fernald -- not accepted
  Linanthus californicus (Hook. & Arn.) J.M. Porter & L.A. Johnson -- not accepted
  Lindsaea repens var. macraeana (Hook. & Arn.) Mett. ex Kuhn -- accepted -- creeping necklace fern
  Lipochaeta lobata var. hastulata (Hook. & Arn.) Sherff -- not accepted
  Lipochaeta succulenta (Hook. & Arn.) DC. -- accepted -- seaside nehe
  Lithocarpus densiflorus (Hook. & Arn.) Rehder -- accepted -- tanoak
  Lithocarpus densiflorus var. densiflorus (Hook. & Arn.) Rehder -- accepted -- tanoak
  Lithophragma heterophyllum (Hook. & Arn.) Hook. & Arn. -- accepted -- hillside woodland-star
  Lithrea Miers ex Hook. & Arn. -- accepted
  Logfia filaginoides (Hook. & Arn.) Morefield -- accepted -- California cottonrose
  Lomatium caruifolium (Hook. & Arn.) J.M. Coult. & Rose -- accepted -- alkali desertparsley
  Lomatium caruifolium var. caruifolium (Hook. & Arn.) J.M. Coult. & Rose -- accepted -- alkali desertparsley
  Lomatium parvifolium (Hook. & Arn.) Jeps. -- accepted -- coastal biscuitroot
  Lonicera subspicata Hook. & Arn. -- accepted -- southern honeysuckle
  Lonicera subspicata var. subspicata Hook. & Arn. -- accepted -- southern honeysuckle
  Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) G.L. Nesom & Kartesz -- not accepted
  Ludwigia hexapetala (Hook. & Arn.) Zardini, H.Y. Gu & P.H. Raven -- accepted
  Lupinus argenteus ssp. parviflorus (Nutt. ex Hook. & Arn.) L.Ll. Phillips -- not accepted
  Lupinus argenteus var. parviflorus (Nutt. ex Hook. & Arn.) C.L. Hitchc. -- not accepted
  Lupinus parviflorus Nutt. ex Hook. & Arn. -- accepted -- lodgepole lupine
  Lupinus parviflorus ssp. parviflorus Nutt. ex Hook. & Arn. -- accepted -- lodgepole lupine
  Lupinus truncatus Nutt. ex Hook. & Arn. -- accepted -- collared annual lupine
  Lycopodium phyllanthum Hook. & Arn. -- not accepted
  Melicope sandwicensis (Hook. & Arn.) T.G. Hartley & B.C. Stone -- accepted -- Mt. Kaala melicope
  Menodora decemfida (Gillies ex Hook. & Arn.) A. Gray -- accepted -- tenfinger menodora
  Mentzelia micrantha (Hook. & Arn.) Torr. & A. Gray -- accepted -- San Luis blazingstar
  Metrosideros macropus Hook. & Arn. -- accepted -- 'ohi'a
  Miltitzia lutea (Hook. & Arn.) A. DC. -- not accepted
  Mimulus nanus Hook. & Arn. -- accepted -- dwarf purple monkeyflower
  Mimulus nanus ssp. nanus Hook. & Arn. -- accepted -- dwarf purple monkeyflower
  Mimulus nanus var. subuniflorus Hook. & Arn. -- not accepted
  Mimulus subuniflorus (Hook. & Arn.) Piper -- not accepted
  Mimulus subuniflorus (Hook. & Arn.) Jeps. -- not accepted
  Morrenia odorata (Hook. & Arn.) Lindl. -- accepted -- latexplant
  Myriophyllum proserpinacoides Gillies ex Hook. & Arn. -- not accepted
  Nama aretioides (Hook. & Arn.) Brand -- accepted -- ground nama, purple nama
  Nama aretioides var. aretioides (Hook. & Arn.) Brand -- accepted -- ground nama
  Navarretia atractyloides (Benth.) Hook. & Arn. -- accepted -- hollyleaf pincushionplant
  Navarretia atractyloides (Benth.) Hook. & Arn. -- not accepted
  Navarretia cotulifolia (Benth.) Hook. & Arn. -- accepted -- cotulaleaf pincushionplant
  Navarretia pubescens (Benth.) Hook. & Arn. -- accepted -- downy pincushionplant
  Navarretia squarrosa (Eschsch.) Hook. & Arn. -- accepted -- skunkbush
  Nemophila menziesii Hook. & Arn. -- accepted -- baby blue eyes, baby blue-eyes
  Nemophila menziesii var. menziesii Hook. & Arn. -- accepted -- baby blue eyes
  Neogaerrhinum strictum (Hook. & Arn.) Rothm. -- accepted -- Kellogg's snapdragon
  Nuttallia cerasiformis Torr. & A. Gray ex Hook. & Arn. -- not accepted
  Oemleria cerasiformis (Torr. & A. Gray ex Hook. & Arn.) J.W. Landon -- accepted -- Indian plum
  Oenothera alyssoides Hook. & Arn. -- not accepted
  Oenothera boothii ssp. alyssoides (Hook. & Arn.) Munz -- not accepted
  Oenothera boothii ssp. decorticans (Hook. & Arn.) Munz -- not accepted
  Oenothera caespitosa ssp. marginata (Nutt. ex Hook. & Arn.) Munz -- not accepted -- tufted evening primrose, tufted evening-primrose
  Oenothera caespitosa var. marginata (Nutt. ex Hook. & Arn.) Munz -- not accepted
  Oenothera cespitosa ssp. marginata (Nutt. ex Hook. & Arn.) Munz -- accepted -- tufted evening primrose, tufted eveningprimrose
  Oenothera cespitosa var. marginata (Nutt. ex Hook. & Arn.) Munz -- not accepted
  Oenothera decorticans (Hook. & Arn.) Greene -- not accepted
  Oenothera graciliflora Hook. & Arn. -- not accepted
  Orthocarpus tolmiei Hook. & Arn. -- accepted -- Tolmie's owl's-clover
  Orthocarpus tolmiei ssp. tolmiei Hook. & Arn. -- accepted -- Tolmie's owl's-clover
  Osmaronia cerasiformis (Torr. & A. Gray ex Hook. & Arn.) Greene -- not accepted
  Osmorhiza chilensis Hook. & Arn. -- not accepted
  Oxalis laxa Hook. & Arn. -- not accepted
  Panicum beecheyi Hook. & Arn. -- accepted -- rock panicgrass
  Panicum nephelophilum var. tenuifolium (Hook. & Arn.) Hillebr. -- not accepted
  Panicum tenuifolium Hook. & Arn. -- accepted -- parkland panicgrass
  Pectocarya linearis var. penicillata (Hook. & Arn.) M.E. Jones -- not accepted
  Pectocarya penicillata (Hook. & Arn.) A. DC. -- accepted -- shortleaf combseed, sleeping combseed, winged combseed
  Pelea sandwicensis (Hook. & Arn.) A. Gray -- not accepted
  Penstemon laricifolius Hook. & Arn. -- accepted -- larchleaf beardtongue
  Penstemon laricifolius ssp. laricifolius Hook. & Arn. -- not accepted -- larchleaf beardtongue
  Penstemon laricifolius var. laricifolius Hook. & Arn. -- accepted -- larchleaf beardtongue
  Peperomia leptostachya Hook. & Arn. -- not accepted -- aridland peperomia
  Peperomia membranacea Hook. & Arn. -- accepted -- woodland peperomia
  Peperomia tetraphylla Hook. & Arn. -- accepted -- acorn peperomia
  Perideridia gairdneri (Hook. & Arn.) Mathias -- accepted -- common yampah, Gardner's yampah, Indian caraway
  Perideridia gairdneri ssp. gairdneri (Hook. & Arn.) Mathias -- accepted -- Gairdner's yampah
  Phacelia lutea (Hook. & Arn.) J.T. Howell -- accepted -- yellow phacelia
  Phacelia lutea var. lutea (Hook. & Arn.) J.T. Howell -- accepted -- yellow phacelia
  Phalaris californica Hook. & Arn. -- accepted -- California canarygrass
  Phyllanthus distichus Hook. & Arn. -- accepted -- pamakani mahu
  Pilea peploides (Gaudich.) Hook. & Arn. -- accepted -- Pacific Island clearweed
  Pipturus albidus (Hook. & Arn.) A. Gray -- accepted -- Waimea pipturus
  Pittosporum glabrum Hook. & Arn. -- accepted -- Koolau Range cheesewood
  Plagiobothrys fulvus (Hook. & Arn.) I.M. Johnst. -- accepted -- fulvous popcornflower
  Plagiobothrys fulvus var. fulvus (Hook. & Arn.) I.M. Johnst. -- accepted -- fulvous popcornflower
  Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. -- accepted -- meadow popcornflower, Scouler's popcornflower
  Plagiobothrys scouleri var. scouleri (Hook. & Arn.) I.M. Johnst. -- not accepted -- Scouler's popcornflower
  Poinsettia strigosa (Hook. & Arn.) Arthur -- not accepted
  Polygala cruciata var. cuspidata (Hook. & Arn.) Alph. Wood -- not accepted
  Polypodium vulgare var. intermedium (Hook. & Arn.) Fernald -- not accepted
  Porterella carnosula (Hook. & Arn.) Torr. -- accepted -- fleshy porterella, porterplant
  Potentilla douglasii var. parviflora (Nutt. ex Hook. & Arn.) J.T. Howell -- not accepted -- pinewoods horkelia
  Prosopis humilis Gillies ex Hook. & Arn. -- accepted -- mesquite
  Prosopis sericantha Gillies ex Hook. & Arn. -- accepted -- mesquite
  Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. -- accepted -- hollyleaf cherry
  Prunus ilicifolia ssp. ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. -- not accepted -- hollyleaf cherry
  Prunus ilicifolia var. ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. -- accepted -- hollyleaf cherry
  Psoralea strobilina Hook. & Arn. -- not accepted
  Quercus douglasii Hook. & Arn. -- accepted -- blue oak
  Ranunculus bonariensis var. trisepalus (Gillies ex Hook. & Arn.) Lourteig -- accepted -- Carter's buttercup
  Ranunculus hebecarpus Hook. & Arn. -- accepted -- delicate buttercup, downy-fruit buttercup
  Ranunculus trisepalus Gillies ex Hook. & Arn. -- not accepted
  Rechsteineria stricta (Hook. & Arn.) Kuntze -- not accepted
  Rhynchosia senna Gillies ex Hook. & Arn. -- accepted -- Texas snout-bean, Texas snoutbean
  Rhynchosia tomentosa (L.) Hook. & Arn. -- accepted -- twining snoutbean
  Rhynchosia tomentosa var. tomentosa (L.) Hook. & Arn. -- accepted -- twining snoutbean
  Rhynchospora sclerioides Hook. & Arn. -- accepted -- Hawai'i beaksedge
  Ribes californicum Hook. & Arn. -- accepted -- hillside gooseberry
  Ribes californicum var. californicum Hook. & Arn. -- accepted -- hillside gooseberry
  Ribes subvestitum Hook. & Arn. -- not accepted
  Rubus parviflorus ssp. velutinus (Hook. & Arn.) Roy L. Taylor & MacBryde -- not accepted
  Rubus parviflorus var. velutinus (Hook. & Arn.) Greene -- not accepted -- thimbleberry
  Rufacer drummondii (Hook. & Arn. ex Nutt.) Small -- not accepted
  Saccharum chinense Nees ex Hook. & Arn. -- not accepted
  Sadleria pallida Hook. & Arn. -- accepted -- ama'u
  Salix speciosa Hook. & Arn. -- not accepted
  Sanicula arctopoides Hook. & Arn. -- accepted -- footsteps of spring
  Sanicula bipinnata Hook. & Arn. -- accepted -- poison sanicle
  Sanicula laciniata Hook. & Arn. -- accepted -- coastal blacksnakeroot
  Santalum paniculatum Hook. & Arn. -- accepted -- mountain sandalwood
  Santalum paniculatum var. paniculatum Hook. & Arn. -- accepted -- mountain sandalwood
  Sapindus drummondii Hook. & Arn. -- not accepted
  Sapindus saponaria var. drummondii (Hook. & Arn.) L.D. Benson -- accepted -- western soapberry
  Scaevola gaudichaudi Hook. & Arn. -- not accepted -- mountain naupaka
  Scaevola gaudichaudii Hook. & Arn. -- accepted -- ridgetop naupaka
  Scaevola glabra Hook. & Arn. -- accepted -- 'ohe naupaka
  Scaevola mollis Hook. & Arn. -- accepted -- purple naupaka
  Schkuhria multiflora Hook. & Arn. -- accepted -- many-flower false threadleaf, manyflower false threadleaf
  Schkuhria multiflora var. multiflora Hook. & Arn. -- not accepted
  Scirpus carinatus (Hook. & Arn. ex Torr.) A. Gray, non Sm. -- not accepted
  Senecio cannabinifolius Hook. & Arn. -- accepted -- hempleaf ragwort
  Senna gaudichaudii (Hook. & Arn.) H.S. Irwin & Barneby -- accepted -- Gaudichaud's senna
  Sesbania tomentosa Hook. & Arn. -- accepted -- `ohai, Oahu riverhemp
  Sicyos pachycarpus Hook. & Arn. -- accepted -- paha
  Sidalcea malachroides (Hook. & Arn.) A. Gray -- accepted -- mapleleaf checkerbloom
  Sinningia stricta (Hook. & Arn.) Wiehler -- not accepted
  Solanum refractum Hook. & Arn. -- accepted
  Solanum sandwicense Hook. & Arn. -- accepted -- `aiakeakua, Hawai'i horsenettle, popolo
  Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb. -- accepted -- currant-leaf globe-mallow, gooseberryleaf globemallow
  Sphaeralcea grossulariifolia ssp. grossulariifolia (Hook. & Arn.) Rydb. -- accepted -- berryleaf globemallow, gooseberryleaf globemallow
  Sphaerocionium lanceolatum (Hook. & Arn.) Copel. -- not accepted
  Spilanthes pusilla Hook. & Arn. -- not accepted
  Spodiopogon aureus Hook. & Arn. -- not accepted
  Tetradymia spinosa Hook. & Arn. -- accepted -- shortspine horsebrush, spiny horsebrush
  Tetranthera californica Hook. & Arn. -- not accepted
  Tetrapteron graciliflorum (Hook. & Arn.) W.L. Wagner & Hoch -- accepted -- hill suncup
  Thelypodium lasiophyllum (Hook. & Arn.) Greene -- not accepted
  Thermopsis macrophylla Hook. & Arn. -- accepted -- Santa Inez goldenbanner
  Thermopsis macrophylla var. macrophylla Hook. & Arn. -- not accepted -- California goldenbanner, false-lupine, golden pea
  Tillaea erecta Hook. & Arn. -- not accepted
  Tillaea minima Miers ex Hook. & Arn. -- not accepted
  Trematolobelia macrostachys (Hook. & Arn.) Zahlbr. ex Rock -- accepted -- koli'i
  Trifolium albopurpureum var. dichotomum (Hook. & Arn.) Isely -- not accepted
  Trifolium chilense Hook. & Arn. -- accepted -- Chilean clover
  Trifolium dichotomum Hook. & Arn. -- accepted -- branched Indian clover
  Trifolium macraei Hook. & Arn. -- accepted -- Chilean clover
  Trifolium macraei var. dichotomum (Hook. & Arn.) W.H. Brewer ex S. Watson -- not accepted
  Trifolium melananthum Hook. & Arn. -- not accepted
  Trifolium microdon Hook. & Arn. -- accepted -- thimble clover
  Trifolium variegatum var. melananthum (Hook. & Arn.) Greene -- not accepted
  Trillium chloropetalum var. giganteum (Hook. & Arn.) Munz -- accepted -- giant wakerobin
  Trillium giganteum (Hook. & Arn.) A. Heller -- not accepted
  Trillium sessile ssp. giganteum (Hook. & Arn.) E. Murray -- not accepted
  Trillium sessile var. giganteum Hook. & Arn. -- not accepted
  Umbellularia californica (Hook. & Arn.) Nutt. -- accepted -- California laurel
  Umbellularia californica var. californica (Hook. & Arn.) Nutt. -- accepted -- California laurel
  Urostachys phyllanthus (Hook. & Arn.) Herter -- not accepted
  Urtica grandis Hook. & Arn. -- not accepted
  Vicia nigricans Hook. & Arn. -- accepted -- black vetch
  Vicia nigricans ssp. nigricans Hook. & Arn. -- not accepted -- black vetch
  Vicia nigricans var. nigricans Hook. & Arn. -- accepted -- black vetch
  Xanthium ambrosioides Hook. & Arn. -- not accepted -- cocklebur
  Yabea microcarpa (Hook. & Arn.) Koso-Pol. -- accepted -- false carrot, false hedge-parsley, falsecarrot
  Zigadenus fremontii var. minor (Hook. & Arn.) Jeps. -- not accepted
   

A gray bar