| 1 | 
|   | Species 
abramsii
J.F. Macbr. syn. Camissonia pallida ssp. pallida
 |  |  | 
| 2 | 
|   | Species 
acutissima
W.L. Wagner common name: 
Flaming Gorge evening-primrose
 |  |  | 
| 3 | 
|   | Species 
affinis
Camb. common name: 
longflower evening-primrose
 |  |  | 
| 4 | 
|   | Species 
albicaulis
Pursh common name: 
whitest evening-primrose
 |  |  | 
| 5 | 
|   | Species 
albinervis
R.R. Gates syn. Oenothera villosa ssp. villosa
 |  |  | 
| 6 | 
|   | Species 
alyssoides
Hook. & Arn. |  |  | 
|  | 
| 7 | 
|   | Varietas 
villosa
S. Wats. syn. Camissonia boothii ssp. alyssoides
 |  |  |  | 
| 8 | 
|   | Species 
amplexicaulis
(Woot. & Standl.) Tidestrom syn. Oenothera pubescens
 |  |  | 
| 9 | 
|   | Species 
andina
Nutt. |  |  | 
|  | 
| 10 | 
|   | Varietas 
hilgardii
(Greene) Munz syn. Camissonia hilgardii
 |  |  |  | 
| 11 | 
|   | Species 
angustissima
R.R. Gates syn. Oenothera oakesiana
 |  |  | 
| 12 | 
|   | Species 
arenaria
(A. Nels.) Raven syn. Camissonia arenaria
 |  |  | 
| 13 | 
|   | Species 
arenicola
(Small) Coker syn. Oenothera fruticosa ssp. fruticosa
 |  |  | 
| 14 | 
|   | Species 
argillicola
Mackenzie |  |  | 
|  | 
| 15 | 
|   | Varietas 
pubescens
Core & Davis syn. Oenothera argillicola
 |  |  |  | 
| 16 | 
|   | Species 
arizonica
Munz syn. Oenothera californica ssp. arizonica
 |  |  | 
| 17 | 
|   | Species 
austromontana
(Munz) Raven, W. Dietr. & Stubbe syn. Oenothera nutans
 |  |  | 
| 18 | 
|   | Species 
avita
(W. Klein) W. Klein |  |  | 
|  | 
| 19 | 
|   | Subspecies 
arizonica
(Munz) W. Klein syn. Oenothera californica ssp. arizonica
 |  |  |  
| 20 | 
|   | Subspecies 
eurekensis
(Munz & Roos) W. Klein syn. Oenothera californica ssp. eurekensis
 |  |  |  | 
| 21 | 
|   | Species 
biennis
L. common name: 
evening-primrose
 |   |  | 
|  | 
| 22 | 
|   | Subspecies 
austromontana
Munz syn. Oenothera nutans
 |  |  |  
| 23 | 
|   | Varietas 
austromontana
(Munz) Cronq. syn. Oenothera nutans
 |  |  |  
| 24 | 
|   | Subspecies 
caeciarum
Munz syn. Oenothera biennis
 |  |  |  
| 25 | 
|   | Varietas 
canescens
Torr. & Gray syn. Oenothera villosa ssp. villosa
 |  |  |  
| 26 | 
|   | Subspecies 
centralis
Munz syn. Oenothera biennis
 |  |  |  
| 27 | 
|   | Varietas 
hirsutissima
Gray ex S. Wats. syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 28 | 
|   | Varietas 
hookeri
(Torr. & Gray) Boivin syn. Oenothera elata ssp. hookeri
 |  |  |  
| 29 | 
|   | Varietas 
nutans
(Atkinson & Bartlett) Wieg. syn. Oenothera nutans
 |  |  |  
| 30 | 
|   | Varietas 
oakesiana
Gray syn. Oenothera oakesiana
 |  |  |  
| 31 | 
|   | Varietas 
pycnocarpa
(Atkinson & Bartlett) Wieg. syn. Oenothera biennis
 |  |  |  
| 32 | 
|   | Varietas 
strigosa
(Rydb.) Piper syn. Oenothera villosa ssp. strigosa
 |  |  |  | 
| 33 | 
|   | Species 
bifrons
D. Don, non Lindl. syn. Oenothera cordata
 |  |  | 
| 34 | 
|   | Species 
bistorta
Nutt. ex Torr. & Gray |  |  | 
|  | 
| 35 | 
|   | Varietas 
hallii
(A. Davids.) Jepson syn. Camissonia pallida ssp. hallii
 |  |  |  
| 36 | 
|   | Varietas 
veitchiana
Hook. syn. Camissonia bistorta
 |  |  |  | 
| 37 | 
|   | Species 
boothii
Dougl. ex Lehm. |  |  | 
|  | 
| 38 | 
|   | Subspecies 
alyssoides
(Hook. & Arn.) Munz syn. Camissonia boothii ssp. alyssoides
 |  |  |  
| 39 | 
|   | Subspecies 
condensata
(Munz) Munz syn. Camissonia boothii ssp. condensata
 |  |  |  
| 40 | 
|   | Subspecies 
decorticans
(Hook. & Arn.) Munz syn. Camissonia boothii ssp. decorticans
 |  |  |  
| 41 | 
|   | Subspecies 
desertorum
(Munz) Munz syn. Camissonia boothii ssp. desertorum
 |  |  |  
| 42 | 
|   | Subspecies 
intermedia
Munz syn. Camissonia boothii ssp. intermedia
 |  |  |  
| 43 | 
|   | Subspecies 
inyoensis
Munz syn. Camissonia boothii ssp. desertorum
 |  |  |  
| 44 | 
|   | Varietas 
pygmaea
(Dougl. ex Lehm.) Torr. & Gray syn. Camissonia pygmaea
 |  |  |  
| 45 | 
|   | Subspecies 
rutila
(A. Davids.) Munz syn. Camissonia boothii ssp. decorticans
 |  |  |  | 
| 46 |  | 
|  | 
| 47 | 
|   | Varietas 
wrightii
(Gray) Levl. syn. Oenothera brachycarpa
 |  |  |  | 
| 48 | 
|   | Species 
breviflora
Torr. & Gray syn. Camissonia breviflora
 |  |  | 
| 49 | 
|   | Species 
brevipes
Gray |  |  | 
|  | 
| 50 | 
|   | Subspecies 
arizonica
Raven syn. Camissonia brevipes ssp. arizonica
 |  |  |  
| 51 | 
|   | Subspecies 
pallidula
(Munz) Raven syn. Camissonia brevipes ssp. pallidula
 |  |  |  
| 52 | 
|   | Varietas 
pallidula
Munz syn. Camissonia brevipes ssp. pallidula
 |  |  |  | 
| 53 | 
|   | Species 
caespitosa
Nutt. common name: 
evening-primrose
 |   |  | 
|  | 
| 54 | 
|   | Subspecies 
australis
Woot. & Standl. syn. Oenothera brachycarpa
 |  |  |  
| 55 | 
|   | Varietas 
australis
(Woot. & Standl.) Munz syn. Oenothera brachycarpa
 |  |  |  
| 56 | 
|   | Subspecies 
caespitosa common name: 
tufted evening-primrose
 |  |  |  
| 57 | 
|   | Subspecies 
crinita
(Rydb.) Munz common name: 
tufted evening-primrose
 |  |  |  
| 58 | 
|   | Varietas 
crinita
(Rydb.) Munz syn. Oenothera caespitosa ssp. crinita
 |  |  |  
| 59 | 
|   | Subspecies 
eximia
(Gray) Munz syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 60 | 
|   | Varietas 
eximia
(Gray) Munz syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 61 | 
|   | Subspecies 
jonesii
(Munz) Munz syn. Oenothera caespitosa ssp. crinita
 |  |  |  
| 62 | 
|   | Varietas 
jonesii
Munz syn. Oenothera caespitosa ssp. crinita
 |  |  |  
| 63 | 
|   | Varietas 
longiflora
(Heller) Munz syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 64 | 
|   | Subspecies 
macroglottis
(Rydb.) W.L. Wagner common name: 
tufted evening-primrose
 |  |  |  
| 65 | 
|   | Varietas 
macroglottis
(Rydb.) Cronq. syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 66 | 
|   | Subspecies 
marginata
(Nutt. ex Hook. & Arn.) Munz common name: 
tufted evening-primrose
 |  |  |  
| 67 | 
|   | Varietas 
marginata
(Nutt. ex Hook. & Arn.) Munz syn. Oenothera caespitosa ssp. marginata
 |  |  |  
| 68 | 
|   | Subspecies 
montana
(Nutt.) Munz syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  
| 69 | 
|   | Varietas 
montana
(Nutt.) Dur. syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  
| 70 | 
|   | Subspecies 
navajoensis
W.L. Wagner, Stockhouse & Klein common name: 
Navajo evening-primrose
 |  |  |  
| 71 | 
|   | Varietas 
navajoensis
(W.L. Wagner, Stockhouse & Klein) Cronq. syn. Oenothera caespitosa ssp. navajoensis
 |  |  |  
| 72 | 
|   | Varietas 
psammophila
(A. Nels. & J.F. Macbr.) Munz syn. Oenothera psammophila
 |  |  |  
| 73 | 
|   | Subspecies 
purpurea
(S. Wats.) Munz syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  
| 74 | 
|   | Varietas 
purpurea
(S. Wats.) Munz syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  | 
| 75 | 
|   | Species 
californica
(S. Wats.) S. Wats. common name: 
evening-primrose
 |   |  | 
|  | 
| 76 | 
|   | Subspecies 
arizonica
(Munz) W. Klein common name: 
California evening-primrose
 |  |  |  
| 77 | 
|   | Subspecies 
avita
W. Klein common name: 
California evening-primrose
 |  |  |  
| 78 | 
|   | Subspecies 
californica common name: 
California evening-primrose
 |  |  |  
| 79 | 
|   | Subspecies 
eurekensis
(Munz & Roos) W. Klein common name: 
Eurela Dunes evening-primrose
 |  |  |  
| 80 | 
|   | Varietas 
glabrata
Munz syn. Oenothera californica ssp. californica
 |  |  |  | 
| 81 | 
|   | Species 
campestris
Greene |  |  | 
|  | 
| 82 | 
|   | Subspecies 
parishii
(Abrams) Munz syn. Camissonia campestris ssp. campestris
 |  |  |  | 
| 83 | 
|   | Species 
canescens
Torr. & Fr�m. common name: 
spotted evening-primrose
 |  |  | 
| 84 | 
|   | Species 
canovirens
Steele syn. Oenothera villosa ssp. villosa
 |  |  | 
| 85 | 
|   | Species 
cardiophylla
Torr. |  |  | 
|  | 
| 86 | 
|   | Subspecies 
robusta
Raven syn. Camissonia cardiophylla ssp. robusta
 |  |  |  
| 87 | 
|   | Varietas 
splendens
Munz & Johnston syn. Camissonia arenaria
 |  |  |  
| 88 | 
|   | Varietas 
typica
Munz syn. Camissonia cardiophylla ssp. cardiophylla
 |  |  |  | 
| 89 | 
|   | Species 
cavernae
Munz common name: 
cavedwelling evening-primrose
 |  |  | 
| 90 | 
|   | Species 
cespitosa
Nutt. |  |  | 
|  | 
| 91 | 
|   | Subspecies 
australis
Woot. & Standl. [orthographic variant] syn. Oenothera brachycarpa
 |  |  |  
| 92 | 
|   | Varietas 
australis
(Woot. & Standl.) Munz [orthographic var syn. Oenothera brachycarpa
 |  |  |  
| 93 | 
|   | Subspecies 
cespitosa
Nutt. [orthographic variant] syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  
| 94 | 
|   | Subspecies 
crinita
(Rydb.) Munz [orthographic variant] syn. Oenothera caespitosa ssp. crinita
 |  |  |  
| 95 | 
|   | Varietas 
crinita
(Rydb.) Munz [orthographic variant] syn. Oenothera caespitosa ssp. crinita
 |  |  |  
| 96 | 
|   | Subspecies 
eximia
(Gray) Munz [orthographic variant] syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 97 | 
|   | Varietas 
eximia
(Gray) Munz [orthographic variant] syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 98 | 
|   | Subspecies 
jonesii
(Munz) Munz [orthographic variant] syn. Oenothera caespitosa ssp. crinita
 |  |  |  
| 99 | 
|   | Varietas 
jonesii
Munz [orthographic variant] syn. Oenothera caespitosa ssp. crinita
 |  |  |  
| 100 | 
|   | Varietas 
longiflora
(Heller) Munz [orthographic variant] syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 101 | 
|   | Subspecies 
macroglottis
(Rydb.) W.L. Wagner [orthographic varian syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 102 | 
|   | Varietas 
macroglottis
(Rydb.) Cronq. [orthographic variant] syn. Oenothera caespitosa ssp. macroglottis
 |  |  |  
| 103 | 
|   | Subspecies 
marginata
(Nutt. ex Hook. & Arn.) Munz [orthograph syn. Oenothera caespitosa ssp. marginata
 |  |  |  
| 104 | 
|   | Varietas 
marginata
(Nutt. ex Hook. & Arn.) Munz [orthograph syn. Oenothera caespitosa ssp. marginata
 |  |  |  
| 105 | 
|   | Subspecies 
montana
(Nutt.) Munz [orthographic variant] syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  
| 106 | 
|   | Varietas 
montana
(Nutt.) Dur. [orthographic variant] syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  
| 107 | 
|   | Subspecies 
navajoensis
W.L. Wagner, Stockhouse & Klein [orthogr syn. Oenothera caespitosa ssp. navajoensis
 |  |  |  
| 108 | 
|   | Varietas 
navajoensis
(W.L. Wagner, Stockhouse & Klein) Cronq. syn. Oenothera caespitosa ssp. navajoensis
 |  |  |  
| 109 | 
|   | Varietas 
psammophila
(A. Nels. & J.F. Macbr.) Munz [orthograp syn. Oenothera psammophila
 |  |  |  
| 110 | 
|   | Subspecies 
purpurea
(S. Wats.) Munz [orthographic variant] syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  
| 111 | 
|   | Varietas 
purpurea
(S. Wats.) Munz [orthographic variant] syn. Oenothera caespitosa ssp. caespitosa
 |  |  |  | 
| 112 | 
|   | Species 
chamaenerioides
Gray syn. Camissonia chamaenerioides
 |  |  | 
| 113 | 
|   | Species 
cheiranthifolia
Hornem. ex Spreng. |  |  | 
|  | 
| 114 | 
|   | Varietas 
nitida
(Greene) Munz syn. Camissonia cheiranthifolia ssp. cheiranthifolia
 |  |  |  
| 115 | 
|   | Subspecies 
suffruticosa
(S. Wats.) Munz syn. Camissonia cheiranthifolia ssp. suffruticosa
 |  |  |  | 
| 116 | 
|   | Species 
cheradophila
Bartlett syn. Oenothera villosa ssp. strigosa
 |  |  | 
| 117 | 
|   | Species 
claviformis
Torr. & Fr�m. |  |  | 
|  | 
| 118 | 
|   | Subspecies 
aurantiaca
(Munz) Raven syn. Camissonia claviformis ssp. aurantiaca
 |  |  |  
| 119 | 
|   | Varietas 
aurantiaca
(Munz) Munz syn. Camissonia claviformis ssp. aurantiaca
 |  |  |  
| 120 | 
|   | Varietas 
citrina
Raven syn. Camissonia claviformis ssp. cruciformis
 |  |  |  
| 121 | 
|   | Subspecies 
cruciformis
(Kellogg) Raven syn. Camissonia claviformis ssp. cruciformis
 |  |  |  
| 122 | 
|   | Varietas 
cruciformis
(Kellogg) Munz syn. Camissonia claviformis ssp. cruciformis
 |  |  |  
| 123 | 
|   | Subspecies 
funerea
Raven syn. Camissonia claviformis ssp. funerea
 |  |  |  
| 124 | 
|   | Subspecies 
integrior
Raven syn. Camissonia claviformis ssp. integrior
 |  |  |  
| 125 | 
|   | Subspecies 
lancifolia
(Heller) Raven syn. Camissonia claviformis ssp. lancifolia
 |  |  |  
| 126 | 
|   | Subspecies 
peeblesii
(Munz) Raven syn. Camissonia claviformis ssp. peeblesii
 |  |  |  
| 127 | 
|   | Varietas 
peeblesii
Munz syn. Camissonia claviformis ssp. peeblesii
 |  |  |  
| 128 | 
|   | Subspecies 
peirsonii
(Munz) Raven syn. Camissonia claviformis ssp. peirsonii
 |  |  |  
| 129 | 
|   | Varietas 
peirsonii
Munz syn. Camissonia claviformis ssp. peirsonii
 |  |  |  
| 130 | 
|   | Varietas 
purpurascens
(S. Wats.) Munz syn. Camissonia claviformis ssp. integrior
 |  |  |  
| 131 | 
|   | Subspecies 
rubescens
Raven syn. Camissonia claviformis ssp. rubescens
 |  |  |  
| 132 | 
|   | Subspecies 
yumae
Raven syn. Camissonia claviformis ssp. yumae
 |  |  |  | 
| 133 | 
|   | Species 
clelandii
W. Dietr., Raven & W.L. Wagner common name: 
Cleland's evening-primrose
 |  |  | 
| 134 | 
|   | Species 
confertiflora
Raven syn. Camissonia confertiflora
 |  |  | 
| 135 | 
|   | Species 
contorta
Dougl. ex Lehm. |  |  | 
|  | 
| 136 | 
|   | Varietas 
epilobioides
(Greene) Munz syn. Camissonia strigulosa
 |  |  |  
| 137 | 
|   | Varietas 
flexuosa
(A. Nels.) Munz syn. Camissonia pusilla
 |  |  |  
| 138 | 
|   | Varietas 
hilgardii
(Greene) Munz syn. Camissonia hilgardii
 |  |  |  
| 139 | 
|   | Varietas 
pubens
(S. Wats.) Coville syn. Camissonia pubens
 |  |  |  
| 140 | 
|   | Varietas 
strigulosa
(Fisch. & C.A. Mey.) Munz syn. Camissonia strigulosa
 |  |  |  | 
| 141 | 
|   | Species 
cordata
J.W. Loudon common name: 
heartleaf evening-primrose
 |  |  | 
| 142 | 
|   | Species 
coronopifolia
Torr. & Gray common name: 
crownleaf evening-primrose
 |  |  | 
| 143 | 
|   | Species 
coryi
W.L. Wagner common name: 
El Paso evening-primrose
 |  |  | 
| 144 | 
|   | Species 
cruciata
Nutt. ex G. Don |  |  | 
|  | 
| 145 | 
|   | Varietas 
sabulonensis
Fern. syn. Oenothera parviflora
 |  |  |  
| 146 | 
|   | Varietas 
stenopetala
(Bickn.) Fern. syn. Oenothera oakesiana
 |  |  |  | 
| 147 | 
|   | Species 
cruciformis
Kellogg syn. Camissonia claviformis ssp. cruciformis
 |  |  | 
| 148 | 
|   | Species 
ctenophylla
(Woot. & Standl.) Tidestrom syn. Oenothera albicaulis
 |  |  | 
| 149 | 
|   | Species 
curtissii
Small common name: 
Curtiss' evening-primrose
 |  |  | 
| 150 | 
|   | Species 
cymatilis
Bartlett syn. Oenothera parviflora
 |  |  | 
| 151 | 
|   | Species 
decorticans
(Hook. & Arn.) Greene |  |  | 
|  | 
| 152 | 
|   | Varietas 
condensata
Munz syn. Camissonia boothii ssp. condensata
 |  |  |  
| 153 | 
|   | Varietas 
desertorum
Munz syn. Camissonia boothii ssp. desertorum
 |  |  |  
| 154 | 
|   | Varietas 
rutila
(A. Davids.) Munz syn. Camissonia boothii ssp. decorticans
 |  |  |  | 
| 155 | 
|   | Species 
delessertiana
Steud. syn. Oenothera speciosa
 |  |  | 
| 156 | 
|   | Species 
deltoides
Torr. & Fr�m. common name: 
desert evening-primrose
 |   |  | 
|  | 
| 157 | 
|   | Subspecies 
ambigua
(S. Wats.) W. Klein common name: 
birdcage evening-primrose
 |  |  |  
| 158 | 
|   | Varietas 
arizonica
Munz syn. Oenothera californica ssp. arizonica
 |  |  |  
| 159 | 
|   | Varietas 
cineracea
(Jepson) Munz syn. Oenothera deltoides ssp. deltoides
 |  |  |  
| 160 | 
|   | Subspecies 
cognata
(Jepson) W. Klein common name: 
birdcage evening-primrose
 |  |  |  
| 161 | 
|   | Varietas 
cognata
(Jepson) Munz syn. Oenothera deltoides ssp. cognata
 |  |  |  
| 162 | 
|   | Varietas 
decumbens
(S. Wats.) Munz syn. Oenothera deltoides ssp. ambigua
 |  |  |  
| 163 | 
|   | Subspecies 
deltoides common name: 
birdcage evening-primrose
 |  |  |  
| 164 | 
|   | Subspecies 
eurekensis
Munz & Roos syn. Oenothera californica ssp. eurekensis
 |  |  |  
| 165 | 
|   | Subspecies 
howellii
(Munz) W. Klein common name: 
Antioch Dunes evening-primrose
 |  |  |  
| 166 | 
|   | Varietas 
howellii
Munz syn. Oenothera deltoides ssp. howellii
 |  |  |  
| 167 | 
|   | Subspecies 
piperi
(Munz) W. Klein common name: 
Piper's evening-primrose
 |  |  |  
| 168 | 
|   | Varietas 
piperi
Munz syn. Oenothera deltoides ssp. piperi
 |  |  |  
| 169 | 
|   | Varietas 
typica
Munz syn. Oenothera deltoides ssp. deltoides
 |  |  |  | 
| 170 | 
|   | Species 
densiflora
Lindl. syn. Epilobium densiflorum
 |  |  | 
| 171 | 
|   | Species 
dentata
Cav. |  |  | 
|  | 
| 172 | 
|   | Varietas 
campestris
(Greene) Jepson syn. Camissonia campestris ssp. campestris
 |  |  |  
| 173 | 
|   | Varietas 
gilmanii
Munz syn. Camissonia kernensis ssp. gilmanii
 |  |  |  
| 174 | 
|   | Varietas 
johnstonii
Munz syn. Camissonia campestris ssp. campestris
 |  |  |  
| 175 | 
|   | Varietas 
parishii
(Abrams) Munz syn. Camissonia campestris ssp. campestris
 |  |  |  | 
| 176 | 
|   | Species 
depressa
Greene |  |  | 
|  | 
| 177 | 
|   | Subspecies 
strigosa
(Rydb.) Taylor & MacBryde syn. Oenothera villosa ssp. strigosa
 |  |  |  | 
| 178 | 
|   | Species 
drummondii
Hook. common name: 
beach evening-primrose
 |  |  | 
| 179 | 
|   | Species 
eastwoodiae
(Munz) Raven syn. Camissonia eastwoodiae
 |  |  | 
| 180 | 
|   | Species 
elata
Kunth |  |  | 
|  | 
| 181 | 
|   | Subspecies 
hirsutissima
(Gray ex S. Wats.) W. Dietr. common name: 
Hooker's evening-primrose
 |  |  |  
| 182 | 
|   | Varietas 
hirsutissima
(Gray ex S. Wats.) Cronq. syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 183 | 
|   | Subspecies 
hookeri
(Torr. & Gray) W. Dietr. & W.L. Wagner common name: 
Hooker's evening-primrose
 |  |  |  
| 184 | 
|   | Subspecies 
texensis
W. Dietr. & W.L. Wagner syn. Oenothera elata ssp. hirsutissima
 |  |  |  | 
| 185 | 
|   | Species 
engelmannii
(Small) Munz common name: 
Engelmann's evening-primrose
 |  |  | 
| 186 | 
|   | Species 
erythrosepala
Borb�s syn. Oenothera glazioviana
 common name: 
evening-primrose
 |   |  | 
| 187 | 
|   | Species 
exilis
Raven syn. Camissonia exilis
 |  |  | 
| 188 | 
|   | Species 
falfurriae
W. Dietr. & W.L. Wagner common name: 
royal evening-primrose
 |  |  | 
| 189 | 
|   | Species 
fendleri
Gray syn. Calylophus hartwegii ssp. fendleri
 |  |  | 
| 190 | 
|   | Species 
filifolia
(Eastw.) Tidestrom syn. Calylophus hartwegii ssp. filifolius
 |  |  | 
| 191 | 
|   | Species 
flava
(A. Nels.) Garrett |  |  | 
|  | 
| 192 | 
|   | Varietas 
acutissima
(W.L. Wagner) Welsh syn. Oenothera acutissima
 |  |  |  
| 193 | 
|   | Subspecies 
flava common name: 
yellow evening-primrose
 |  |  |  
| 194 | 
|   | Subspecies 
taraxacoides
(Woot. & Standl.) W.L. Wagner common name: 
yellow evening-primrose
 |  |  |  | 
| 195 | 
|   | Species 
fremontii
S. Wats. syn. Oenothera macrocarpa ssp. fremontii
 |  |  | 
| 196 | 
|   | Species 
fruticosa
L. common name: 
common sundrop
 |   |  | 
|  | 
| 197 | 
|   | Varietas 
eamesii
(B.L. Robins.) Blake syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 198 | 
|   | Subspecies 
fruticosa common name: 
narrowleaf evening-primrose
 |  |  |  
| 199 | 
|   | Subspecies 
glauca
(Michx.) Straley common name: 
narrowleaf evening-primrose
 |  |  |  
| 200 | 
|   | Varietas 
goodmanii
Munz syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 201 | 
|   | Varietas 
humifusa
Allen syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 202 | 
|   | Varietas 
linearis
(Michx.) S. Wats. syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 203 | 
|   | Varietas 
microcarpa
Fern. syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 204 | 
|   | Varietas 
subglobosa
(Small) Munz syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 205 | 
|   | Varietas 
unguiculata
Fern. syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 206 | 
|   | Varietas 
vera
Hook. syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  | 
| 207 | 
|   | Species 
glabella
Nutt. syn. Epilobium pygmaeum
 |  |  | 
| 208 | 
|   | Species 
glazioviana
Micheli common name: 
redsepal evening-primrose
 |  |  | 
| 209 | 
|   | Species 
gouldii
(Raven) Welsh & Atwood syn. Camissonia gouldii
 |  |  | 
| 210 | 
|   | Species 
graciliflora
Hook. & Arn. syn. Camissonia graciliflora
 |  |  | 
| 211 | 
|   | Species 
grandiflora
L'H�r. ex Ait. common name: 
largeflower evening-primrose
 |  |  | 
| 212 | 
|   | Species 
grandis
(Britt.) Smyth common name: 
showy evening-primrose
 |  |  | 
| 213 | 
|   | Species 
greggii
Gray |  |  | 
|  | 
| 214 | 
|   | Varietas 
lampasana
(Buckl.) Munz syn. Calylophus hartwegii ssp. pubescens
 |  |  |  
| 215 | 
|   | Varietas 
pringlei
Munz syn. Calylophus hartwegii ssp. maccartii
 |  |  |  
| 216 | 
|   | Varietas 
pubescens
Gray syn. Calylophus hartwegii ssp. pubescens
 |  |  |  | 
| 217 | 
|   | Species 
guadalupensis
S. Wats. |  |  | 
|  | 
| 218 | 
|   | Subspecies 
clementina
Raven syn. Camissonia guadalupensis ssp. clementina
 |  |  |  | 
| 219 | 
|   | Species 
hallii
(A. Davids.) Munz syn. Camissonia pallida ssp. hallii
 |  |  | 
| 220 | 
|   | Species 
hamata
(Woot. & Standl.) Tidestrom syn. Oenothera triloba
 |  |  | 
| 221 | 
|   | Species 
harringtonii
W.L. Wagner common name: 
Colorado Springs evening-primrose
 |  |  | 
| 222 | 
|   | Species 
hartwegii
Benth. |  |  | 
|  | 
| 223 | 
|   | Varietas 
fendleri
(Gray) Gray syn. Calylophus hartwegii ssp. fendleri
 |  |  |  
| 224 | 
|   | Varietas 
filifolia
(Eastw.) Munz syn. Calylophus hartwegii ssp. filifolius
 |  |  |  
| 225 | 
|   | Varietas 
toumeyi
(Small) Munz syn. Calylophus toumeyi
 |  |  |  
| 226 | 
|   | Varietas 
typica
Munz syn. Calylophus hartwegii ssp. hartwegii
 |  |  |  | 
| 227 | 
|   | Species 
havardii
S. Wats. common name: 
Havard's evening-primrose
 |  |  | 
| 228 | 
|   | Species 
heterantha
Nutt. syn. Camissonia subacaulis
 |  |  | 
| 229 | 
|   | Species 
heterochroma
S. Wats. |  |  | 
|  | 
| 230 | 
|   | Varietas 
megalantha
Munz syn. Camissonia megalantha
 |  |  |  
| 231 | 
|   | Subspecies 
monoensis
(Munz) Raven syn. Camissonia heterochroma
 |  |  |  
| 232 | 
|   | Varietas 
monoensis
Munz syn. Camissonia heterochroma
 |  |  |  | 
| 233 | 
|   | Species 
heterophylla
Spach |  |  | 
|  | 
| 234 | 
|   | Subspecies 
heterophylla common name: 
variableleaf evening-primrose
 |  |  |  
| 235 | 
|   | Subspecies 
orientalis
W. Dietr., Raven & W.L. Wagner common name: 
oriental evening-primrose
 |  |  |  
| 236 | 
|   | Varietas 
rhombipetala
(Nutt. ex Torr. & Gray) Fosberg syn. Oenothera rhombipetala
 |  |  |  | 
| 237 | 
|   | Species 
hilgardii
Greene syn. Camissonia hilgardii
 |  |  | 
| 238 | 
|   | Species 
hirtella
Greene syn. Camissonia hirtella
 |  |  | 
| 239 | 
|   | Species 
hookeri
Torr. & Gray |  |  | 
|  | 
| 240 | 
|   | Subspecies 
angustifolia
(R.R. Gates) Munz syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 241 | 
|   | Varietas 
angustifolia
R.R. Gates syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 242 | 
|   | Subspecies 
grisea
(Bartlett) Munz syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 243 | 
|   | Subspecies 
hewettii
Cockerell syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 244 | 
|   | Varietas 
hewettii
(Cockerell) Cockerell syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 245 | 
|   | Subspecies 
hirsutissima
(Gray ex S. Wats.) Munz syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 246 | 
|   | Varietas 
hirsutissima
(Gray ex S. Wats.) Munz syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 247 | 
|   | Subspecies 
montereyensis
Munz syn. Oenothera elata ssp. hookeri
 |  |  |  
| 248 | 
|   | Subspecies 
ornata
(A. Nels.) Munz syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 249 | 
|   | Varietas 
ornata
(A. Nels.) Munz syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 250 | 
|   | Subspecies 
venusta
(Bartlett) Munz syn. Oenothera elata ssp. hirsutissima
 |  |  |  
| 251 | 
|   | Subspecies 
wolfii
Munz syn. Oenothera wolfii
 |  |  |  | 
| 252 | 
|   | Species 
howardii
(A. Nels.) W.L. Wagner common name: 
Howard's evening-primrose
 |  |  | 
| 253 | 
|   | Species 
humifusa
Nutt. common name: 
seabeach evening-primrose
 |  |  | 
| 254 | 
|   | Species 
ignota
(Jepson) Munz syn. Camissonia ignota
 |  |  | 
| 255 | 
|   | Species 
jamesii
Torr. & Gray common name: 
trumpet evening-primrose
 |  |  | 
| 256 | 
|   | Species 
kernensis
Munz |  |  | 
|  | 
| 257 | 
|   | Subspecies 
gilmanii
(Munz) Munz syn. Camissonia kernensis ssp. gilmanii
 |  |  |  
| 258 | 
|   | Subspecies 
mojavensis
Munz syn. Camissonia kernensis ssp. gilmanii
 |  |  |  | 
| 259 | 
|   | Species 
kleinii
W.L. Wagner & S. Mill. common name: 
Wolf Creek evening-primrose
 |  |  | 
| 260 | 
|   | Species 
kunthiana
(Spach) Munz common name: 
Kunth's evening-primrose
 |  |  | 
| 261 | 
|   | Species 
laciniata
Hill common name: 
evening-primrose
 |   |  | 
|  | 
| 262 | 
|   | Varietas 
grandiflora
(S. Wats.) B.L. Robins. syn. Oenothera grandis
 |  |  |  
| 263 | 
|   | Subspecies 
pubescens
(Willd. ex Spreng.) Munz syn. Oenothera pubescens
 |  |  |  
| 264 | 
|   | Varietas 
pubescens
(Willd. ex Spreng.) Munz syn. Oenothera pubescens
 |  |  |  | 
| 265 | 
|   | Species 
latifolia
(Rydb.) Munz common name: 
mountain evening-primrose
 |  |  | 
| 266 | 
|   | Species 
lavandulifolia
Torr. & Gray |  |  | 
|  | 
| 267 | 
|   | Varietas 
glandulosa
Munz syn. Calylophus lavandulifolius
 |  |  |  
| 268 | 
|   | Varietas 
typica
Munz syn. Calylophus lavandulifolius
 |  |  |  | 
| 269 | 
|   | Species 
leptocarpa
Greene syn. Camissonia californica
 |  |  | 
| 270 | 
|   | Species 
linifolia
Nutt. |  |  | 
|  | 
| 271 | 
|   | Varietas 
glandulosa
Munz syn. Oenothera linifolia
 |  |  |  | 
| 272 | 
|   | Species 
longissima
Rydb. |  |  | 
|  | 
| 273 | 
|   | Subspecies 
clutei
(A. Nels.) Munz syn. Oenothera longissima
 |  |  |  
| 274 | 
|   | Varietas 
clutei
(A. Nels.) Munz syn. Oenothera longissima
 |  |  |  
| 275 | 
|   | Subspecies 
typica
Munz syn. Oenothera longissima
 |  |  |  | 
| 276 | 
|   | Species 
macrocarpa
Nutt. |  |  | 
|  | 
| 277 | 
|   | Subspecies 
fremontii
(S. Wats.) W.L. Wagner common name: 
Fremont's evening-primrose
 |  |  |  
| 278 | 
|   | Subspecies 
incana
(Gray) Wagner common name: 
bigfruit evening-primrose
 |  |  |  
| 279 | 
|   | Varietas 
incana
(Gray) Reveal syn. Oenothera macrocarpa ssp. incana
 |  |  |  
| 280 | 
|   | Subspecies 
macrocarpa common name: 
bigfruit evening-primrose
 |  |  |  
| 281 | 
|   | Subspecies 
oklahomensis
(J.B.S. Norton) Wagner common name: 
Oklahoma evening-primrose
 |  |  |  
| 282 | 
|   | Varietas 
oklahomensis
(J.B.S. Norton) Reveal syn. Oenothera macrocarpa ssp. oklahomensis
 |  |  |  | 
| 283 | 
|   | Species 
macrosiphon
Woot. & Standl. syn. Oenothera organensis
 |  |  | 
| 284 | 
|   | Species 
megalantha
(Munz) Raven syn. Camissonia megalantha
 |  |  | 
| 285 | 
|   | Species 
mexicana
Spach common name: 
Mexican evening-primrose
 |  |  | 
| 286 | 
|   | Species 
micrantha
Hornem. ex Spreng. |  |  | 
|  | 
| 287 | 
|   | Varietas 
exfoliata
(A. Nels.) Munz syn. Camissonia pallida ssp. pallida
 |  |  |  
| 288 | 
|   | Varietas 
ignota
Jepson syn. Camissonia ignota
 |  |  |  
| 289 | 
|   | Varietas 
jonesii
(Levl.) Munz syn. Camissonia hirtella
 |  |  |  | 
| 290 | 
|   | Species 
minor
(A. Nels.) Munz |  |  | 
|  | 
| 291 | 
|   | Varietas 
cusickii
Munz syn. Camissonia minor
 |  |  |  | 
| 292 | 
|   | Species 
missouriensis
Sims common name: 
Ozark sundrop, Missouri evening-primrose
 |   |  | 
|  | 
| 293 | 
|   | Varietas 
incana
Gray syn. Oenothera macrocarpa ssp. incana
 |  |  |  
| 294 | 
|   | Varietas 
oklahomensis
(J.B.S. Norton) Munz syn. Oenothera macrocarpa ssp. oklahomensis
 |  |  |  | 
| 295 | 
|   | Species 
mollissima
L. common name: 
Argentine evening-primrose
 |  |  | 
| 296 | 
|   | Species 
multijuga
S. Wats. |  |  | 
|  | 
| 297 | 
|   | Varietas 
orientalis
Munz syn. Camissonia walkeri ssp. walkeri
 |  |  |  
| 298 | 
|   | Varietas 
parviflora
(S. Wats.) Munz syn. Camissonia multijuga
 |  |  |  
| 299 | 
|   | Varietas 
typica
Munz syn. Camissonia multijuga
 |  |  |  | 
| 300 | 
|   | Species 
munzii
Raven syn. Camissonia munzii
 |  |  | 
| 301 | 
|   | Species 
muricata
L. syn. Oenothera biennis
 |  |  | 
| 302 | 
|   | Species 
neomexicana
(Small) Munz common name: 
New Mexico evening-primrose
 |  |  | 
| 303 | 
|   | Species 
nevadensis
Kellogg syn. Camissonia nevadensis
 |  |  | 
| 304 | 
|   | Species 
nutans
Atkinson & Bartlett common name: 
nodding evening-primrose
 |  |  | 
| 305 | 
|   | Species 
nuttallii
Sweet common name: 
Nuttall's evening-primrose
 |  |  | 
| 306 | 
|   | Species 
oakesiana
(Gray) J.W. Robbins ex S. Wats. & Coult. common name: 
Oakes' evening-primrose
 |  |  | 
| 307 | 
|   | Species 
organensis
Munz common name: 
Organ Mountain evening-primrose
 |  |  | 
| 308 | 
|   | Species 
ornata
(A. Nels.) Rydb. syn. Oenothera elata ssp. hirsutissima
 |  |  | 
| 309 | 
|   | Species 
ovata
Nutt. ex Torr. & Gray syn. Camissonia ovata
 |  |  | 
| 310 | 
|   | Species 
pallida
Lindl. |  |  | 
|  | 
| 311 | 
|   | Subspecies 
gypsophila
(Eastw.) Munz & W. Klein common name: 
whitepole evening-primrose
 |  |  |  
| 312 | 
|   | Varietas 
idahoensis
Munz syn. Oenothera pallida ssp. pallida
 |  |  |  
| 313 | 
|   | Subspecies 
latifolia
(Rydb.) Munz syn. Oenothera latifolia
 |  |  |  
| 314 | 
|   | Subspecies 
pallida common name: 
pale evening-primrose
 |  |  |  
| 315 | 
|   | Subspecies 
runcinata
(Engelm.) Munz & W. Klein common name: 
pale evening-primrose
 |  |  |  
| 316 | 
|   | Varietas 
runcinata
(Engelm.) Cronq. syn. Oenothera pallida ssp. runcinata
 |  |  |  
| 317 | 
|   | Subspecies 
trichocalyx
(Nutt.) Munz & W. Klein common name: 
pale evening-primrose
 |  |  |  
| 318 | 
|   | Varietas 
trichocalyx
(Nutt.) Dorn syn. Oenothera pallida ssp. trichocalyx
 |  |  |  
| 319 | 
|   | Varietas 
typica
Munz syn. Oenothera pallida ssp. pallida
 |  |  |  | 
| 320 | 
|   | Species 
pallidula
(Munz) Munz syn. Camissonia brevipes ssp. pallidula
 |  |  | 
| 321 | 
|   | Species 
palmeri
S. Wats. syn. Camissonia palmeri
 |  |  | 
| 322 | 
|   | Species 
parryi
S. Wats. syn. Camissonia parryi
 |  |  | 
| 323 | 
|   | Species 
parviflora
L. |  |  | 
|  | 
| 324 | 
|   | Subspecies 
angustissima
(R.R. Gates) Munz syn. Oenothera oakesiana
 |  |  |  
| 325 | 
|   | Varietas 
angustissima
(R.R. Gates) Wieg. syn. Oenothera oakesiana
 |  |  |  
| 326 | 
|   | Varietas 
oakesiana
(Gray) Fern. syn. Oenothera oakesiana
 |  |  |  | 
| 327 | 
|   | Species 
parvula
Nutt. ex Torr. & Gray syn. Camissonia parvula
 |  |  | 
| 328 | 
|   | Species 
perennis
L. |  |  | 
|  | 
| 329 | 
|   | Varietas 
rectipilis
(Blake) Blake syn. Oenothera perennis
 |  |  |  
| 330 | 
|   | Varietas 
typica
Munz syn. Oenothera perennis
 |  |  |  | 
| 331 | 
|   | Species 
pilosella
Raf. |  |  | 
|  | 
| 332 | 
|   | Subspecies 
pilosella common name: 
meadow evening-primrose
 |  |  |  
| 333 | 
|   | Subspecies 
sessilis
(Pennell) Straley common name: 
meadow evening-primrose
 |  |  |  | 
| 334 | 
|   | Species 
platanorum
Raven & Parnell common name: 
Fort Huachuca evening-primrose
 |  |  | 
| 335 | 
|   | Species 
primiveris
Gray |  |  | 
|  | 
| 336 | 
|   | Subspecies 
bufonis
(M.E. Jones) Munz common name: 
desert evening-primrose
 |  |  |  
| 337 | 
|   | Varietas 
bufonis
(M.E. Jones) Cronq. syn. Oenothera primiveris ssp. bufonis
 |  |  |  
| 338 | 
|   | Subspecies 
caulescens
(Munz) Munz syn. Oenothera primiveris ssp. primiveris
 |  |  |  
| 339 | 
|   | Varietas 
caulescens
Munz syn. Oenothera primiveris ssp. primiveris
 |  |  |  
| 340 | 
|   | Subspecies 
primiveris common name: 
desert evening-primrose
 |  |  |  | 
| 341 | 
|   | Species 
pringlei
(Munz) Munz syn. Calylophus hartwegii ssp. maccartii
 |  |  | 
| 342 | 
|   | Species 
procera
Woot. & Standl. syn. Oenothera villosa ssp. strigosa
 |  |  | 
| 343 | 
|   | Species 
psammophila
(A. Nels. & J.F. Macbr.) W.L. Wagner, St |  |  | 
|  | 
| 344 | 
|   | Varietas 
lein common name: 
St. Anthony Dunes evening-primrose
 |  |  |  | 
| 345 | 
|   | Species 
pterosperma
S. Wats. syn. Camissonia pterosperma
 |  |  | 
| 346 | 
|   | Species 
pubens
(S. Wats.) Munz syn. Camissonia pubens
 |  |  | 
| 347 | 
|   | Species 
pubescens
Willd. ex Spreng. common name: 
South American evening-primrose
 |  |  | 
| 348 | 
|   | Species 
pycnocarpa
Atkinson & Bartlett syn. Oenothera biennis
 |  |  | 
| 349 | 
|   | Species 
pygmaea
Dougl. ex Lehm. syn. Camissonia pygmaea
 |  |  | 
| 350 | 
|   | Species 
refracta
S. Wats. syn. Camissonia refracta
 |  |  | 
| 351 | 
|   | Species 
rhombipetala
Nutt. ex Torr. & Gray common name: 
fourpoint evening-primrose
 |  |  | 
| 352 | 
|   | Species 
rosea
L'H�r. ex Ait. common name: 
rose evening-primrose
 |  |  | 
| 353 | 
|   | Species 
rubricapitata
R.R. Gates syn. Oenothera parviflora
 |  |  | 
| 354 | 
|   | Species 
runcinata
(Engelm.) Munz |  |  | 
|  | 
| 355 | 
|   | Varietas 
brevifolia
(Engelm.) Munz syn. Oenothera pallida ssp. runcinata
 |  |  |  
| 356 | 
|   | Varietas 
gypsophila
(Eastw.) Munz syn. Oenothera pallida ssp. gypsophila
 |  |  |  
| 357 | 
|   | Varietas 
leucotricha
(Woot. & Standl.) Munz syn. Oenothera pallida ssp. runcinata
 |  |  |  
| 358 | 
|   | Varietas 
typica
Munz syn. Oenothera pallida ssp. runcinata
 |  |  |  | 
| 359 | 
|   | Species 
rydbergii
House syn. Oenothera villosa ssp. strigosa
 |  |  | 
| 360 | 
|   | Species 
scapoidea
Nutt. ex Torr. & Gray |  |  | 
|  | 
| 361 | 
|   | Subspecies 
brachycarpa
Raven syn. Camissonia scapoidea ssp. brachycarpa
 |  |  |  
| 362 | 
|   | Varietas 
eastwoodiae
Munz syn. Camissonia eastwoodiae
 |  |  |  
| 363 | 
|   | Subspecies 
macrocarpa
Raven syn. Camissonia scapoidea ssp. macrocarpa
 |  |  |  
| 364 | 
|   | Varietas 
purpurascens
S. Wats. syn. Camissonia claviformis ssp. integrior
 |  |  |  
| 365 | 
|   | Varietas 
seorsa
(A. Nels.) Munz syn. Camissonia scapoidea ssp. scapoidea
 |  |  |  
| 366 | 
|   | Varietas 
tortilis
Jepson syn. Camissonia walkeri ssp. tortilis
 |  |  |  
| 367 | 
|   | Subspecies 
utahensis
Raven syn. Camissonia scapoidea ssp. utahensis
 |  |  |  | 
| 368 | 
|   | Species 
serrulata
Nutt. |  |  | 
|  | 
| 369 | 
|   | Subspecies 
drummondii
(Torr. & Gray) Munz syn. Calylophus berlandieri ssp. berlandieri
 |  |  |  
| 370 | 
|   | Subspecies 
pinifolia
(Engelm. ex Gray) Munz syn. Calylophus berlandieri ssp. pinifolius
 |  |  |  
| 371 | 
|   | Varietas 
typica
Munz syn. Calylophus serrulatus
 |  |  |  | 
| 372 | 
|   | Species 
sessilis
(Pennell) Munz syn. Oenothera pilosella ssp. sessilis
 |  |  | 
| 373 | 
|   | Species 
simsiana
auct. non Ser. syn. Oenothera elata ssp. hirsutissima
 |  |  | 
| 374 | 
|   | Species 
spachiana
Torr. & Gray common name: 
Spach's evening-primrose
 |  |  | 
| 375 | 
|   | Species 
speciosa
Nutt. common name: 
showy evening-primrose
 |   |  | 
|  | 
| 376 | 
|   | Varietas 
childsii
(Bailey) Munz syn. Oenothera speciosa
 |  |  |  | 
| 377 | 
|   | Species 
specuicola
Raven |  |  | 
|  | 
| 378 | 
|   | Subspecies 
hesperia
Raven syn. Camissonia specuicola ssp. hesperia
 |  |  |  | 
| 379 | 
|   | Species 
stricta
Ledeb. ex Link common name: 
Chilean evening-primrose
 |  |  | 
| 380 | 
|   | Species 
strigosa
(Rydb.) Mackenzie & Bush |  |  | 
|  | 
| 381 | 
|   | Subspecies 
canovirens
(Steele) Munz syn. Oenothera villosa ssp. villosa
 |  |  |  
| 382 | 
|   | Subspecies 
cheradophila
(Bartlett) Munz syn. Oenothera villosa ssp. strigosa
 |  |  |  | 
| 383 | 
|   | Species 
strigulosa
(Fisch. & C.A. Mey.) Torr. & Gray |  |  | 
|  | 
| 384 | 
|   | Varietas 
pubens
S. Wats. syn. Camissonia pubens
 |  |  |  | 
| 385 | 
|   | Species 
subacaulis
(Pursh) Garrett syn. Camissonia subacaulis
 |  |  | 
| 386 | 
|   | Species 
tanacetifolia
Torr. & Gray syn. Camissonia tanacetifolia ssp. tanacetifolia
 |  |  | 
| 387 | 
|   | Species 
taraxacoides
(Woot. & Standl.) Munz syn. Oenothera flava ssp. taraxacoides
 |  |  | 
| 388 | 
|   | Species 
tetragona
Roth common name: 
common sundrop
 |   |  | 
|  | 
| 389 | 
|   | Varietas 
brevistipata
(Pennell) Munz syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 390 | 
|   | Varietas 
fraseri
(Pursh) Munz syn. Oenothera fruticosa ssp. glauca
 |  |  |  
| 391 | 
|   | Subspecies 
glauca
(Michx.) Munz syn. Oenothera fruticosa ssp. glauca
 |  |  |  
| 392 | 
|   | Varietas 
hybrida
(Michx.) Fern. syn. Oenothera fruticosa ssp. glauca
 |  |  |  
| 393 | 
|   | Varietas 
latifolia
(Rydb.) Fern. syn. Oenothera fruticosa ssp. glauca
 |  |  |  
| 394 | 
|   | Varietas 
longistipata
(Pennell) Munz syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 395 | 
|   | Varietas 
riparia
(Nutt.) Munz syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 396 | 
|   | Varietas 
sharpii
Munz syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  
| 397 | 
|   | Varietas 
velutina
(Pennell) Munz syn. Oenothera fruticosa ssp. fruticosa
 |  |  |  | 
| 398 | 
|   | Species 
tetraptera
Cav. common name: 
fourwing evening-primrose
 |  |  | 
| 399 | 
|   | Species 
texensis
Raven & Parnell common name: 
Texas evening-primrose
 |  |  | 
| 400 | 
|   | Species 
toumeyi
(Small) Tidestrom syn. Calylophus toumeyi
 |  |  | 
| 401 | 
|   | Species 
trichocalyx
Nutt. syn. Oenothera pallida ssp. trichocalyx
 |   |  | 
| 402 | 
|   | Species 
triloba
Nutt. common name: 
stemless evening-primrose
 |   |  | 
| 403 | 
|   | Species 
tubicula
Gray |  |  | 
|  | 
| 404 | 
|   | Varietas 
filifolia
Eastw. syn. Calylophus hartwegii ssp. filifolius
 |  |  |  | 
| 405 | 
|   | Species 
villosa
Thunb. |  |  | 
|  | 
| 406 | 
|   | Subspecies 
canovirens
(Steele) W. Dietr. & Raven syn. Oenothera villosa ssp. villosa
 |  |  |  
| 407 | 
|   | Subspecies 
cheradophila
(Bartlett) W. Dietr. & Raven syn. Oenothera villosa ssp. strigosa
 |  |  |  
| 408 | 
|   | Subspecies 
strigosa
(Rydb.) W. Dietr. & Raven common name: 
hairy evening-primrose
 |  |  |  
| 409 | 
|   | Varietas 
strigosa
(Rydb.) Dorn syn. Oenothera villosa ssp. strigosa
 |  |  |  
| 410 | 
|   | Subspecies 
villosa common name: 
hairy evening-primrose
 |  |  |  | 
| 411 | 
|   | Species 
walkeri
(A. Nels.) Raven |  |  | 
|  | 
| 412 | 
|   | Subspecies 
tortilis
(Jepson) Raven syn. Camissonia walkeri ssp. tortilis
 |  |  |  | 
| 413 | 
|   | Species 
wolfii
(Munz) Raven, W. Dietr. & Stubbe common name: 
Wolf's evening-primrose
 |  |  | 
| 414 | 
|   | Species 
xylocarpa
Coville common name: 
woodyfruit evening-primrose
 |  |  |