Checklist » Onagraceae
Onagraceae[HC, HC2, JPM, JPM2](Evening-Primrose Family)
Synonyms: (none)

Notes: Some genera in the Onagraceae have undergone significant taxonomic revision since publication of Flora PNW, 1st edition. For example, the genus Oenothera as circumscribed in H&C has been split into several segregate genera. Species level changes are extensive in the genus Epilobium.

Family information last updated 1/12/2019 by David Giblin.

Taxon (native taxa in boldface)
Common Names
# Synonyms
Camissonia contorta (Douglas) Kearney[HC2, JPM2]
contorted pod suncup, twisted suncup
2 synonyms
Camissonia parvula (Nutt. ex Torr. & A. Gray) P.H. Raven[HC2, JPM2]
Lewis river suncup
3 synonyms
Camissonia pusilla P.H. Raven[HC2, JPM2]
little suncup
1 synonym
Chamaenerion angustifolium (L.) Scop.[HC2]
fireweed
2 synonyms
Chamaenerion latifolium (L.) Sweet[HC2]
alpine fireweed, broad-leaf fireweed
2 synonyms
Chylismia scapoidea (Torr. & A. Gray) Raim.[HC2]
naked-stemmed beeblossom
2 synonyms
ssp. brachycarpa (P.H. Raven) W.L. Wagner & Hoch[HC2]
short-fruited beeblossom
1 synonym
Circaea alpina L.[HC, HC2]
enchanter's nightshade
0 synonyms
ssp. alpina[HC2, KZ99]
dwarf enchanter's nightshade
0 synonyms
ssp. pacifica (Asch. & Magnus) P.H. Raven[HC2, KZ99]
Pacific enchanter's nightshade
1 synonym
Clarkia amoena (Lehm.) A. Nelson & J.F. Macbr.[HC, HC2]
yellow clarkia, arewell-to-spring, farewell-to-spring
6 synonyms
Clarkia gracilis (Piper) A. Nelson & J.F. Macbr.[HC, HC2]
slender godetia
0 synonyms
ssp. gracilis[HC2, JPM2]
slender godetia
2 synonyms
Clarkia pulchella Pursh[HC, HC2]
deer horn, pink fairies, ragged robin
0 synonyms
Clarkia purpurea (W. Curtis) A. Nelson & J.F. Macbr.[HC, HC2]
purple godetia
0 synonyms
ssp. quadrivulnera (Douglas) F.H. Lewis & M.E. Lewis[WTU]
four-spot
3 synonyms
ssp. viminea (Douglas) F.H. Lewis & M.E. Lewis[WTU]
twiggy clarkia
1 synonym
Clarkia rhomboidea Douglas ex Hook.[HC, HC2]
common clarkia, diamond fairyfan
0 synonyms
Epilobium anagallidifolium Lam.[HC2, JPM2]
alpine willow-herb, pimpernel willow-herb
1 synonym
Epilobium brachycarpum C. Presl[HC2, JPM2]
autumn willow-herb, tall annual willow-herb
5 synonyms
Epilobium campestre (Jeps.) Hoch & W.L. Wagner[HC2, JPM2]
smooth willow-herb
2 synonyms
Epilobium ciliatum Raf.[HC2]
ciliate willow-herb, Watson's willow-herb
10 synonyms
Epilobium clavatum Trel.[HC2, JPM]
talus willow-herb
2 synonyms
Epilobium densiflorum (Lindl.) Hoch & P.H. Raven[HC2, JPM2]
dense-flower willow-herb
6 synonyms
Epilobium glaberrimum Barbey[HC, HC2]
smooth willow-herb
5 synonyms
Epilobium glandulosum Lehm.[HC, HC2]
ciliate willow-herb
5 synonyms
Epilobium hallianum Hausskn.[HC2, JPM2]
glandular willow-herb, Hall's willow-herb
4 synonyms
Epilobium hirsutum L.[HC, HC2]
codlins-and-cream, fiddle grass, great willow-herb, hairy willow-herb
0 synonyms
Epilobium hornemannii Rchb.[HC2]
Hornemann's willow-herb
0 synonyms
ssp. hornemannii[HC2, JPM2]
Hornemann's willow-herb
1 synonym
Epilobium lactiflorum Hausskn.[HC2, JPM2]
white-flower willow-herb
2 synonyms
Epilobium leptocarpum Hausskn.[HC2, IFBC]
slender-fruit willow-herb
0 synonyms
Epilobium leptophyllum Raf.[HC2, JPM2]
bog willow-herb
0 synonyms
Epilobium luteum Pursh[HC, HC2, JPM2]
yellow willow-herb
0 synonyms
Epilobium minutum Lindl.[HC, HC2, JPM2]
California willow-herb, chaparral willow-herb, small-flowered willow-herb
2 synonyms
Epilobium mirabile Trel. ex Piper[HC2, IFBC]
Olympic Mountain willow-herb
0 synonyms
Epilobium montanum L.[HC2]
broad-leaved willow-herb
0 synonyms
Epilobium obscurum Schreb.[HC2]
dwarf willow-herb
0 synonyms
Epilobium oregonense Hausskn.[HC2, JPM2]
Oregon willow-herb
1 synonym
Epilobium palustre L.[HC, HC2, JPM2]
marsh willow-herb
0 synonyms
Epilobium ×pulchrum Suksd.[HC2, KZ99]
 
0 synonyms
Epilobium smithii H. Lév.
talus willow-herb
0 synonyms
Epilobium torreyi (S. Watson) Hoch & P.H. Raven[HC2, JPM2]
brook willow-herb
1 synonym
Epilobium ×treleasianum H. Lév.[HC2]
 
0 synonyms
Eremothera boothii (Douglas) W.L. Wagner & Hoch[HC2]
Booth's evening-primrose, Booth's mooncup
2 synonyms
ssp. boothii[HC2, JPM2]
Booth's evening primrose, Booth's mooncup
3 synonyms
Eremothera minor (A. Nelson) W.L. Wagner & Hoch[HC2, JPM2]
small-flowered evening-primrose, green river suncup
4 synonyms
Eremothera pygmaea (Douglas) W.L. Wagner & Hoch[HC2, JPM2]
dwarf suncup
3 synonyms
Gayophytum decipiens F.H. Lewis & Szweyk.[HC, HC2, JPM]
deceptive groundsmoke
0 synonyms
Gayophytum diffusum Torr. & A. Gray[HC, HC2]
spreading groundsmoke
3 synonyms
Gayophytum heterozygum F.H. Lewis & Szweyk.[HC2, JPM]
zigzag groundsmoke
1 synonym
Gayophytum humile Juss.[HC, HC2, JPM]
dwarf groundsmoke
1 synonym
Gayophytum racemosum Torr. & A. Gray[HC, HC2, JPM]
black-foot groundsmoke, racemose groundsmoke
3 synonyms
Gayophytum ramosissimum Torr. & A. Gray[HC, HC2, JPM]
pinyon groundsmoke
0 synonyms
Ludwigia hexapetala (Hook. & Arn.) Zardini, H.Y. Gu & P.H. Raven[HC2, JPM]
false loosestrife, water primrose
0 synonyms
Ludwigia palustris (L.) Elliott[HC, HC2, JPM]
marsh primrose-willow, water purslane
2 synonyms
Ludwigia peploides (Kunth) P.H. Raven[HC2]
floating primrose-willow
0 synonyms
ssp. montevidensis (Spreng.) P.H. Raven[HC2]
floating primrose-willow
1 synonym
Neoholmgrenia andina (Nutt.) W.L. Wagner & Hoch[HC2, JPM2]
blackfoot river suncup, obscure suncup
3 synonyms
Neoholmgrenia hilgardii (Greene) W.L. Wagner & Hoch[HC2, JPM2]
Hilgard's suncup
4 synonyms
Oenothera biennis L.[HC2, JPM2]
King's-cureall
3 synonyms
Oenothera cespitosa Nutt.[HC2]
 
1 synonym
ssp. cespitosa[HC2, JPM2]
butte primrose, fragrant evening primrose, rock rose
6 synonyms
ssp. marginata (Nutt. ex Hook. & Arn.) Munz[HC2, JPM2]
fragrant evening-primrose
2 synonyms
Oenothera curtiflora W.L. Wagner & Hoch[HC2, JPM2]
small-flowered gaura, velvet weed
2 synonyms
Oenothera elata Kunth[HC2]
Hooker's evening primrose
7 synonyms
Oenothera flava (A. Nelson) Garrett[HC, HC2]
long-tubed evening primrose
1 synonym
Oenothera glazioviana Micheli[HC2, JPM2]
red-sepal evening-primrose
1 synonym
Oenothera pallida Lindl.[HC, HC2]
pale evening-primrose
0 synonyms
ssp. pallida[HC2, IFBC]
pale evening primrose
3 synonyms
Oenothera villosa Thunb.
common evening primrose
0 synonyms
ssp. strigosa (Rydb.) W. Dietr. & P.H. Raven[JPM2]
hairy common evening primrose
3 synonyms
Taraxia subacaulis (Pursh) Rydb.[HC2, JPM2]
long-leaf evening-primrose
3 synonyms
Taraxia tanacetifolia (Torr. & A. Gray) Piper[HC2, JMP2]
tansy-leaf evening-primrose
3 synonyms
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