Epilobium - Species

Species

The National Museum of Natural History recognizes an intermediate number of about 175 species in 10 sections, including two sections of Chamerion which they consider distinct. Other sources may list one or two dozen species more or less:

Section Boisduvalia

  • Epilobium densiflorum – Denseflower Willowherb, Dense Spike-primrose, Dense Boisduvalia
  • Epilobium pallidum – Largeflower Spike-primrose
  • Epilobium pygmaeum – Pygmy Willowherb, Smooth Boisduvalia
  • Epilobium subdentatum (Meyen) Lievens & Hoch
  • Epilobium torreyi – Torrey's Willowherb, Brook Spike-primrose

Section Cordylophorum

Subsection Nuttalia
  • Epilobium suffruticosum Nutt. ex Torr. & A.Gray – Shrubby Willowherb
Subsection Petrolobium
  • Epilobium nevadense Munz – Nevada Willowherb
  • Epilobium nivium Brandegee – Snow Mountain Willowherb

Section Crossostigma

  • Epilobium foliosum – Leafy Willowherb, California Willowherb
  • Epilobium minutum – Chaparral Willowherb, Desert Willowherb, "smallflower willowherb"

Section Epilobiopsis

  • Epilobium campestre (Jeps.) Hoch & W.L.Wagner
  • Epilobium cleistogamum – Selfing Willowherb

Section Macrocarpa

  • Epilobium rigidum – Stiff Willowherb, Siskiyou Mountains Willowherb

Section Xerolobium

  • Epilobium brachycarpum – Tall Willowherb, Tall Annual Willowherb, Tall Fireweed, Panicled Willowherb

Section Zauschneria

  • Epilobium canum – Zauschneria, California-fuchsia, Hummingbird Flower, Hummingbird Trumpet
  • Epilobium septentrionale – Northern Willowherb, Humboldt County Fuchsia

Section Epilobium

  • Epilobium aitchisonii P.H.Raven
  • Epilobium algidum M.Bieb.
  • Epilobium alpestre (Jacq.) Krock.
  • Epilobium alsinifolium Vill. – Chickweed Willowherb
  • Epilobium alsinoides A.Cunn.
    • Epilobium alsinoides ssp. alsinoides
    • Epilobium alsinoides ssp. atriplicifolium (A.Cunn.) P.H.Raven & Engelhorn
    • Epilobium alsinoides ssp. tenuipes (Hook.f.) P.H. Raven & Engelhorn
  • Epilobium amurense Hausskn.
    • Epilobium amurense ssp. amurense
    • Epilobium amurense ssp. cephalostigma (Hausskn.) C.J.Chen, Hoch & P.H.Raven
  • Epilobium anagallidifolium – Alpine Willowherb, Pimpernel Willowherb
  • Epilobium anatolicum Hausskn.
    • Epilobium anatolicum ssp. anatolicum
    • Epilobium anatolicum ssp. prionophyllum (Hausskn.) P.H.Raven
  • Epilobium angustum (Cheeseman) P.H. Raven & Engelhorn
  • Epilobium arcticum Sam. – Arctic Willowherb (sometimes included in E. davuricum)
  • Epilobium astonii (Allan) P.H.Raven & Engelhorn
  • Epilobium atlanticum Litard. & Maire
  • Epilobium australe Poeppig & Hausskn.
  • Epilobium barbeyanum H.Lév.
  • Epilobium billardierianum Ser. – Glabrous Willowherb
    • Epilobium billardierianum ssp. billardierianum
    • Epilobium billardierianum ssp. cinereum (A.Rich.) P.H.Raven & Engelhorn
    • Epilobium billardierianum ssp. hydrophilum P.H. Raven & Engelhorn
    • Epilobium billardierianum ssp. intermedium P.H. Raven & Engelhorn
  • Epilobium blinii H.Lév.
  • Epilobium brevifolium D.Don
    • Epilobium brevifolium ssp. brevifolium
    • Epilobium brevifolium ssp. trichoneurum (Hausskn.) P.H.Raven
  • Epilobium brevipes Hook.f.
  • Epilobium brevisquamatum P.H.Raven
  • Epilobium brunnescens (Cockayne) P.H. Raven & Engelhorn – New Zealand Willowherb
    • Epilobium brunnescens ssp. beaugleholei K.R.West & P.H.Raven
    • Epilobium brunnescens ssp. brunnescens
    • Epilobium brunnescens ssp. minutiflorum (Cockayne) P.H. Raven & Engelhorn
  • Epilobium capense Buchinger ex Hochst.
  • Epilobium chionanthum Hausskn.
  • Epilobium chitralense P.H.Raven
  • Epilobium chlorifolium Hausskn.
  • Epilobium ciliatum – Fringed Willowherb, American Willowherb
  • Epilobium clarkeanum Hausskn.
  • Epilobium clavatum – Talus Willowherb, Clavatefruit Willowherb
  • Epilobium collinum C.C.Gmelin
  • Epilobium coloratum Biehler – Purpleleaf Willowherb
  • Epilobium confertifolium Hook.f.
  • Epilobium confusum Hausskn.
  • Epilobium conjungens Skottsb.
  • Epilobium crassum Hook.f.
  • Epilobium curtisiae P.H.Raven
  • Epilobium cylindricum D.Don
  • Epilobium davuricum Fisch. ex Hornem. – Daurian Willowherb
  • Epilobium densifolium Hausskn.
  • Epilobium denticulatum Ruiz & Pav.
  • Epilobium detzneranum Schltr. ex Diels
  • Epilobium duriaei Gay ex Godr.
  • Epilobium fangii C.J.Chen, Hoch & P.H.Raven
  • Epilobium fastigiatoramosum Nakai
  • Epilobium fauriei H.Lév.
  • Epilobium forbesii Allan
  • Epilobium fragile Sam.
  • Epilobium frigidum Hausskn.
  • Epilobium fugitivum P.H. Raven & Engelhorn
  • Epilobium gemmascens C.A.Mey.
  • Epilobium glabellum G.Forst. – Smooth Spike-primrose
  • Epilobium glaberrimum – Glaucous Willowherb
  • Epilobium glaciale P.H.Raven
  • Epilobium glaucum Phil.
  • Epilobium gouldii P.H.Raven
  • Epilobium gracilipes Kirk
  • Epilobium griffithianum Hausskn.
  • Epilobium gunnianum Hausskn.
  • Epilobium halleanum – Glandular Willowherb
  • Epilobium hectorii Hausskn.
  • Epilobium hirsutum – Great Willowherb, Great Hairy Willowherb, Hairy Willowherb, Codlins-and-cream, Apple-pie, "cherry-pie"
  • Epilobium hirtigerum A.Cunn.
  • Epilobium hohuanense S.S.Ying
  • Epilobium hooglandii P.H.Raven
  • Epilobium hornemannii Rchb. – Hornemann's Willowherb
    • Epilobium hornemannii ssp. behringianum (Hausskn.) Hoch & P.H.Raven
    • Epilobium hornemannii ssp. hornemannii
  • Epilobium howellii – Yuba Pass Willowherb, Subalpine Fireweed
  • Epilobium indicum Hausskn.
  • Epilobium insulare Hausskn.
  • Epilobium kermodei P.H.Raven
  • Epilobium keysseri Diels
  • Epilobium kingdonii P.H.Raven
  • Epilobium komarovianum H.Lév. – Bronzy Willowherb
  • Epilobium lactiflorum – Milkflower Willowherb, Whiteflower Willowherb
  • Epilobium lanceolatum Sebast. & Mauri – Spear-leaved Willowherb
  • Epilobium laxum Royle
  • Epilobium leiophyllum Hausskn.
  • Epilobium leptocarpum Hausskn. – Slenderfruit Willowherb
  • Epilobium leptophyllum – Bog Willowherb, Linear-leaved Willowherb
  • Epilobium luteum Pursh – Yellow Willowherb
  • Epilobium macropus Hook.
  • Epilobium margaretiae Brockie
  • Epilobium matthewsii Petrie
  • Epilobium maysillesii Munz
  • Epilobium melanocaulon Hook.
  • Epilobium microphyllum A.Rich.
  • Epilobium minutiflorum Hausskn.
  • Epilobium mirabile Trel. – Olympic Mountain Willowherb
  • Epilobium montanum – Broad-leaved Willowherb
  • Epilobium nankotaizanense Yamam. – Nankotaizan Willowherb
  • Epilobium nerteroides A.Cunn.
  • Epilobium nivale Meyen
  • Epilobium nummulariifolium R.Cunn. ex A.Cunn.
  • Epilobium nutans F.W.Schmidt
  • Epilobium obcordatum – Rockfringe Willowherb
  • Epilobium obscurum Schreb. – Dwarf Willowherb, Short-fruited Willowherb
  • Epilobium oreganum – Grants Pass Willowherb, Oregon Fireweed
  • Epilobium oregonense – Oregon Willowherb
  • Epilobium pallidiflorum Sol. ex A.Cunn.
  • Epilobium palustre – Marsh Willowherb
  • Epilobium pannosum Hausskn.
  • Epilobium parviflorum Schreb. – Small-flowered Willowherb, Hoary Willowherb
  • Epilobium pedicellare C.Presl
  • Epilobium pedunculare A.Cunn. – Rockery Willowherb
  • Epilobium pengii C.J.Chen, Hoch & P.H.Raven
  • Epilobium pernitens Cockayne & Allan
  • Epilobium perpusillum Hausskn.
  • Epilobium petraeum Heenan
  • Epilobium pictum Petrie
  • Epilobium platystigmatosum C.B.Rob.
  • Epilobium ponticum Hausskn.
  • Epilobium porphyrium G.Simpson
  • Epilobium prostratum Warb.
  • Epilobium psilotum Maire & Sam.
  • Epilobium pubens A.Rich.
  • Epilobium puberulum Hook. & Arn.
  • Epilobium purpuratum Hook.f.
  • Epilobium pycnostachyum Hausskn.
  • Epilobium pyrricholophum Franch. & Sav.
  • Epilobium rechingeri P.H.Raven
  • Epilobium rhynchospermum Boiss.
  • Epilobium roseum Schreb. – Pale Willowherb
    • Epilobium roseum ssp. consimile (Hausskn.) P.H.Raven
    • Epilobium roseum ssp. roseum
    • Epilobium roseum ssp. subsessile (Boiss.) P.H.Raven
  • Epilobium rostratum Cheeseman
  • Epilobium rotundifolium G.Forst.
  • Epilobium royleanum Hausskn.
  • Epilobium rupicolum Pavlov
  • Epilobium salignum Hausskn.
  • Epilobium sarmentaceum Hausskn.
  • Epilobium saximontanum Hausskn. – Rocky Mountain Willowherb
  • Epilobium sikkimense Hausskn.
  • Epilobium sinense H.Lév.
  • Epilobium siskiyouense – Siskiyou Willowherb, Siskiyou Fireweed
  • Epilobium smithii H.Lév.
  • Epilobium staintonii P.H.Raven
  • Epilobium stereophyllum Fresen.
  • Epilobium stracheyanum Hausskn.
  • Epilobium strictum Muhl. – Downy Willowherb, Stiff Spike-primrose
  • Epilobium subalgidum Hausskn.
  • Epilobium subcoriaceum Hausskn.
  • Epilobium subnivale Popov ex Pavlov
  • Epilobium taiwanianum C.J.Chen, Hoch & P.H.Raven
  • Epilobium tasmanicum Hausskn.
  • Epilobium tetragonum L. – Square-stemmed Willowherb
    • Epilobium tetragonum ssp. lamyi (F.W.Schultz) Nyman
    • Epilobium tetragonum ssp. tetragonum
    • Epilobium tetragonum ssp. tournefortii (Michalet) H.Lév.
  • Epilobium tianschanicum Pavlov
  • Epilobium tibetanum Hausskn.
  • Epilobium trichophyllum Hausskn.
  • Epilobium vernonicum Snogerup
  • Epilobium wallichianum Hausskn.
  • Epilobium warakense Nábelek
  • Epilobium wattianum Hausskn.
  • Epilobium williamsii P.H.Raven
  • Epilobium willisii P.H. Raven & Engelhorn
  • Epilobium wilsonii Cheeseman
  • Epilobium × wisconsinense Ugent – Wisconsin Willowherb (=E. ciliatum ssp. ciliatum × E. coloratum)

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