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Expert: Norman K.B. Robson

ITIS records citing expert
 
 Kingdom Plantae
  Hypericaceae -- accepted
  Hypericum L. -- accepted -- St. Johnswort
  Hypericum adpressum W.P.C. Barton -- accepted -- creeping St. Johnswort
  Hypericum aegypticum L. -- accepted
  Hypericum anagalloides Cham. & Schltdl. -- accepted -- creeping St. Johnswort, tinker's penny, tinker's-penny
  Hypericum androsaemum L. -- accepted -- sweet-amber, tutsan
  Hypericum apocynifolium Small -- accepted
  Hypericum ascyron L. -- accepted -- great St. Johnswort
  Hypericum beanii N. Robson -- accepted
  Hypericum brachyphyllum (Spach) Steud. -- accepted -- coastal plain St. Johnswort
  Hypericum buckleyi M.A. Curtis -- accepted -- Buckley's St. Johnswort
  Hypericum calycinum L. -- accepted -- Aaron's beard
  Hypericum canadense L. -- accepted -- lesser Canadian St. Johnswort
  Hypericum canariense L. -- accepted -- Canary Island St. Johnswort
  Hypericum cerastioides (Spach) N. Robson -- accepted
  Hypericum chapmanii W.P. Adams -- accepted -- Apalachicola St. Johnswort
  Hypericum cistifolium Lam. -- accepted -- roundpod St. Johnswort
  Hypericum concinnum Benth. -- accepted -- goldwire
  Hypericum coris L. -- accepted
  Hypericum crux-andreae (L.) Crantz -- accepted -- Atlantic St. Peter's-wort, St. Peterswort
  Hypericum cumulicola (Small) W.P. Adams -- accepted -- highlands scrub hypericum, highlands scrub St. Johnswort
  Hypericum densiflorum Pursh -- accepted -- bushy St. Johnswort, dense St. Johnswort
  Hypericum denticulatum Walter -- accepted -- coppery St. Johnswort
  Hypericum diosmoides Griseb. -- accepted -- Puerto Rico St. Johnswort
  Hypericum dolabriforme Vent. -- accepted -- straggling St. Johnswort
  Hypericum drummondii (Grev. & Hook.) Torr. & A. Gray -- accepted -- Drummond's St. Johnswort, nits and lice
  Hypericum edisonianum (Small) W.P. Adams & N. Robson -- accepted -- Arcadian St. Johnswort, Edison's ascyrum
  Hypericum ellipticum Hook. -- accepted -- pale St. Johnswort
  Hypericum fasciculatum Lam. -- accepted -- peelbark St. Johnswort, St. Johnswort
  Hypericum formosum Kunth -- accepted
  Hypericum frondosum Michx. -- accepted -- cedarglade St. Johnswort
  Hypericum galioides Lam. -- accepted -- bedstraw St. Johnswort
  Hypericum gentianoides (L.) Britton, Sterns & Poggenb. -- accepted -- orangegrass, pinweed St. Johnswort
  Hypericum gramineum G. Forst. -- accepted -- grassy St. Johnswort
  Hypericum grandifolium Choisy -- accepted
  Hypericum graveolens Buckley -- accepted -- mountain St. Johnswort
  Hypericum gymnanthum Engelm. & A. Gray -- accepted -- claspingleaf St. Johnswort
  Hypericum harperi R. Keller -- accepted -- sharplobe St. Johnswort
  Hypericum hircinum L. -- accepted
  Hypericum hookerianum Wight & Arn. -- accepted -- Hooker's St. Johnswort
  Hypericum humifusum L. -- accepted -- trailing St. Johnswort
  Hypericum hypericoides (L.) Crantz -- accepted -- St. Andrew's cross
  Hypericum kalmianum L. -- accepted -- kalm's st. john's-wort, Kalm's St. Johnswort, millepertuis de Kalm
  Hypericum lissophloeus W.P. Adams -- accepted -- smoothbark St. Johnswort
  Hypericum lloydii (Svenson) W.P. Adams -- accepted -- sandhill St. Johnswort
  Hypericum lobocarpum Gatt. ex J.M. Coult. -- accepted -- fivelobe St. Johnswort
  Hypericum maculatum Crantz -- accepted -- spotted St. John's-wort
  Hypericum majus (A. Gray) Britton -- accepted -- greater Canadian St. John's-wort, large St. Johnswort
  Hypericum microsepalum (Torr. & A. Gray) A. Gray ex S. Watson -- accepted -- flatwoods St. Johnswort
  Hypericum mutilum L. -- accepted -- dwarf St. Johnswort
  Hypericum myrtifolium Lam. -- accepted -- myrtleleaf St. Johnswort
  Hypericum nitidum Lam. -- accepted -- Carolina St. Johnswort
  Hypericum nudiflorum Michx. ex Willd. -- accepted -- early St. Johnswort, naked St. Johnswort
  Hypericum parvulum Greene -- accepted -- Sierra Madre St. Johnswort
  Hypericum patulum Thunb. -- accepted
  Hypericum pauciflorum Kunth -- accepted -- fewflower St. Johnswort
  Hypericum paucifolium S. Watson -- accepted
  Hypericum perforatum L. -- accepted -- common St. John's wort, common St. Johnswort, Klamath weed, Klamathweed, St. John's wort, St. Johnswort
  Hypericum prolificum L. -- accepted -- shrubby St. Johnswort
  Hypericum pseudomaculatum Bush -- accepted -- false spotted St. Johnswort
  Hypericum pulchrum L. -- accepted
  Hypericum punctatum Lam. -- accepted -- spotted St. Johnswort
  Hypericum reflexum L. f. -- accepted
  Hypericum roeperianum G.W. Schimp. ex A. Rich. -- accepted
  Hypericum scouleri Hook. -- accepted -- Scouler's St. Johnswort
  Hypericum setosum L. -- accepted -- hairy St. Johnswort
  Hypericum sphaerocarpum Michx. -- accepted -- roundseed St. Johnswort
  Hypericum suffruticosum W.P. Adams & N. Robson -- accepted -- pineland St. Johnswort
  Hypericum tenuifolium Pursh -- accepted -- Atlantic St. Johnswort
  Hypericum tetrapetalum Lam. -- accepted -- fourpetal St. Johnswort
  Hypericum tetrapterum Fr. -- accepted -- square-stalk St. Johnswort
  Hypericum uralum Buch.-Ham. ex D. Don -- accepted
  Hypericum X dissimulatum E.P. Bicknell (pro. sp.) -- accepted -- disguised St. Johnswort
  Hypericum X mitchellianum Rydb. (pro sp.) -- accepted -- Blue Ridge St. Johnswort
  Hypericum X moserianum André -- accepted -- St. Johnswort
  Triadenum Raf. -- accepted -- marsh St. Johnswort, triadenum
  Triadenum fraseri (Spach) Gleason -- accepted -- Fraser's marsh St. Johnswort
  Triadenum tubulosum (Walter) Gleason -- accepted -- lesser marsh St. Johnswort
  Triadenum virginicum (L.) Raf. -- accepted -- marsh st. john's wort, Virginia marsh St. Johnswort
  Triadenum walteri (J.F. Gmel.) Gleason -- accepted -- greater marsh St. Johnswort
  Vismia Vand. -- accepted
  Vismia cayennensis (Jacq.) Pers. -- accepted
  Vismia laxiflora Reichardt -- accepted
   

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