| 
1
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  Species 
adenophyllum
Gray
 syn. Hesperolinon adenophyllum
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| 
2
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  Species 
alatum
(Small) Winkl.
 common name: 
winged flax
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| 
3
 | 
 
  
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  Species 
angustifolium
Huds.
 syn. Linum bienne
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| 
4
 | 
 
  
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  Species 
arenicola
(Small) Winkl.
 common name: 
sand flax
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| 
5
 | 
 
  
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  Species 
aristatum
Engelm.
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|   | 
| 
6
 | 
 
  
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  Varietas 
australe
(Heller) Kearney & Peebles
 syn. Linum australe var. australe
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| 
7
 | 
 
  
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  Varietas 
subteres
Trel.
 syn. Linum subteres
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| 
8
 | 
 
  
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  Species 
australe
Heller
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|   | 
| 
9
 | 
 
  
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  Varietas 
australe
 common name: 
southern flax
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| 
10
 | 
 
  
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  Varietas 
glandulosum
Rogers
 common name: 
southern flax
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| 
11
 | 
 
  
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  Species 
berlandieri
Hook.
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|   | 
| 
12
 | 
 
  
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  Varietas 
berlandieri
 common name: 
Berlandier's yellow flax
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| 
13
 | 
 
  
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  Varietas 
filifolium
(Shinners) Rogers
 common name: 
Berlandier's yellow flax
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| 
14
 | 
 
  
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  Species 
bicarpellatum
H.K. Sharsmith
 syn. Hesperolinon bicarpellatum
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| 
15
 | 
 
  
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  Species 
bienne
P. Mill.
 common name: 
pale flax
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| 
16
 | 
 
  
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  Species 
breweri
Gray
 syn. Hesperolinon breweri
 | 
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| 
17
 | 
 
  
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  Species 
californicum
Benth.
 | 
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|   | 
| 
18
 | 
 
  
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  Varietas 
confertum
Gray ex Trel.
 syn. Hesperolinon californicum
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 | 
 
| 
19
 | 
 
  
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  Varietas 
congestum
(Gray) Jepson
 syn. Hesperolinon congestum
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| 
20
 | 
 
  
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  Species 
carteri
Small
 | 
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|   | 
| 
21
 | 
 
  
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  Varietas 
carteri
 common name: 
Carter's flax
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| 
22
 | 
 
  
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  Varietas 
smallii
Rogers
 common name: 
Small's flax
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| 
23
 | 
 
  
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  Species 
catharticum
L.
 common name: 
fairy flax
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| 
24
 | 
 
  
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  Species 
clevelandii
Greene
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|   | 
| 
25
 | 
 
  
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  Varietas 
petrophilum
Jepson
 syn. Hesperolinon clevelandii
 | 
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| 
26
 | 
 
  
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  Species 
compactum
A. Nels.
 common name: 
Wyoming flax
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| 
27
 | 
 
  
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  Species 
congestum
Gray
 syn. Hesperolinon congestum
 | 
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| 
28
 | 
 
  
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  Species 
digynum
Gray
 syn. Sclerolinon digynum
 | 
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| 
29
 | 
 
  
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  Species 
drymarioides
Curran
 syn. Hesperolinon drymarioides
 | 
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| 
30
 | 
 
  
 | 
  Species 
elongatum
(Small) Winkl.
 common name: 
Laredo flax
 | 
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| 
31
 | 
 
  
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  Species 
floridanum
(Planch.) Trel.
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|   | 
| 
32
 | 
 
  
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  Varietas 
chrysocarpum
Rogers
 common name: 
Florida yellow flax
 | 
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 | 
 
| 
33
 | 
 
  
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  Varietas 
floridanum
 common name: 
Florida yellow flax
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| 
34
 | 
 
  
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  Species 
gallicum
L.
 syn. Linum trigynum
 | 
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| 
35
 | 
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| 
36
 | 
 
  
 | 
  Species 
greggii
Engelm.
 syn. Linum schiedeanum
 | 
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| 
37
 | 
 
  
 | 
  Species 
harperi
Small
 syn. Linum sulcatum var. harperi
 | 
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| 
38
 | 
 
  
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  Species 
hudsonioides
Planch.
 common name: 
Texas flax
 | 
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| 
39
 | 
 
  
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  Species 
humile
P. Mill.
 syn. Linum usitatissimum
 | 
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| 
40
 | 
 
  
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  Species 
imbricatum
(Raf.) Shinners
 common name: 
tufted flax
 | 
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| 
41
 | 
 
  
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  Species 
intercursum
Bickn.
 common name: 
sandplain flax
 | 
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| 
42
 | 
 
  
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  Species 
kingii
S. Wats.
 | 
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|   | 
| 
43
 | 
 
  
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  Varietas 
pinetorum
M.E. Jones
 syn. Linum kingii
 | 
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 | 
 
| 
44
 | 
 
  
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  Varietas 
sedoides
Porter
 syn. Linum kingii
 | 
 | 
 
 
 | 
  
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| 
45
 | 
 
  
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  Species 
leptopoda
A. Nels.
 syn. Linum subteres
 | 
 | 
 
 
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| 
46
 | 
 
  
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  Species 
lewisii
Pursh
 | 
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|   | 
| 
47
 | 
 
  
 | 
  Varietas 
alpicola
Jepson
 common name: 
prairie flax
 | 
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 | 
 
| 
48
 | 
 
  
 | 
  Varietas 
lewisii
 common name: 
prairie flax
 | 
 | 
 
 
 | 
 
| 
49
 | 
 
  
 | 
  Varietas 
pratense
J.B.S. Norton
 syn. Linum pratense
 | 
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 | 
 
| 
50
 | 
 
  
 | 
  Varietas 
saxosum
Maguire & A. Holmgren
 syn. Linum lewisii var. alpicola
 | 
 | 
 
 
 | 
  
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| 
51
 | 
 
  
 | 
  Species 
lundellii
Rogers
 common name: 
Sullivan City flax
 | 
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| 
52
 | 
 
  
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  Species 
macrocarpum
Rogers
 common name: 
Spring Hill flax
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| 
53
 | 
 
  
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  Species 
medium
(Planch.) Britt.
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|   | 
| 
54
 | 
 
  
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  Varietas 
medium
 common name: 
stiff yellow flax
 | 
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 | 
 
| 
55
 | 
 
  
 | 
  Varietas 
texanum
(Planch.) Fern.
 common name: 
stiff yellow flax
 | 
 | 
 
 
 | 
  
 | 
| 
56
 | 
 
  
 | 
  Species 
micranthum
Gray
 syn. Hesperolinon micranthum
 | 
 | 
 
 
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| 
57
 | 
 
  
 | 
  Species 
neomexicanum
Greene
 common name: 
New Mexico yellow flax
 | 
 | 
 
 
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| 
58
 | 
 
  
 | 
  Species 
perenne
L.
 common name: 
perennial flax
 | 
   
 | 
 
 
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|   | 
| 
59
 | 
 
  
 | 
  Subspecies 
lewisii
(Pursh) Hult�n
 syn. Linum lewisii var. lewisii
 | 
 | 
 
 
 | 
 
| 
60
 | 
 
  
 | 
  Varietas 
lewisii
(Pursh) Eat. & J. Wright
 syn. Linum lewisii var. lewisii
 | 
 | 
 
 
 | 
  
 | 
| 
61
 | 
 
  
 | 
  Species 
pratense
(J.B.S. Norton) Small
 common name: 
meadow flax
 | 
 | 
 
 
 | 
| 
62
 | 
 
  
 | 
  Species 
puberulum
(Engelm.) Heller
 common name: 
plains flax
 | 
 | 
 
 
 | 
| 
63
 | 
 
  
 | 
  Species 
rigidum
Pursh
 | 
 | 
 
 
 | 
|   | 
| 
64
 | 
 
  
 | 
  Varietas 
berlandieri
(Hook.) Torr. & Gray
 syn. Linum berlandieri var. berlandieri
 | 
 | 
 
 
 | 
 
| 
65
 | 
 
  
 | 
  Varietas 
carteri
(Small) Rogers
 syn. Linum carteri var. carteri
 | 
 | 
 
 
 | 
 
| 
66
 | 
 
  
 | 
  Varietas 
compactum
(A. Nels.) Rogers
 syn. Linum compactum
 | 
 | 
 
 
 | 
 
| 
67
 | 
 
  
 | 
  Varietas 
filifolium
Shinners
 syn. Linum berlandieri var. filifolium
 | 
 | 
 
 
 | 
 
| 
68
 | 
 
  
 | 
  Varietas 
puberulum
Engelm.
 syn. Linum puberulum
 | 
 | 
 
 
 | 
 
| 
69
 | 
 
  
 | 
  Varietas 
rigidum
 common name: 
stiffstem flax
 | 
 | 
 
 
 | 
 
| 
70
 | 
 
  
 | 
  Varietas 
simulans
Rogers
 common name: 
stiffstem flax
 | 
 | 
 
 
 | 
  
 | 
| 
71
 | 
 
  
 | 
  Species 
rupestre
(Gray) Engelm. ex Gray
 common name: 
rock flax
 | 
 | 
 
 
 | 
| 
72
 | 
 
  
 | 
  Species 
sanctum
Small
 syn. Linum berlandieri var. berlandieri
 | 
 | 
 
 
 | 
| 
73
 | 
 
  
 | 
  Species 
schiedeanum
Schlecht. & Cham.
 common name: 
Schied's flax
 | 
 | 
 
 
 | 
| 
74
 | 
 
  
 | 
  Species 
spergulinum
Gray
 syn. Hesperolinon spergulinum
 | 
 | 
 
 
 | 
| 
75
 | 
 
  
 | 
  Species 
striatum
Walt.
 | 
 | 
 
 
 | 
|   | 
| 
76
 | 
 
  
 | 
  Varietas 
medium
(Planch.) Boivin
 syn. Linum medium var. medium
 | 
 | 
 
 
 | 
 
| 
77
 | 
 
  
 | 
  Varietas 
multijugum
Fern.
 syn. Linum striatum
 | 
 | 
 
 
 | 
 
| 
78
 | 
 
  
 | 
  Varietas 
texanum
(Planch.) Boivin
 syn. Linum medium var. texanum
 | 
 | 
 
 
 | 
  
 | 
| 
79
 | 
 
  
 | 
  Species 
subteres
(Trel.) Winkl.
 common name: 
sprucemont flax
 | 
 | 
 
 
 | 
| 
80
 | 
 
  
 | 
  Species 
sulcatum
Riddell
 | 
 | 
 
 
 | 
|   | 
| 
81
 | 
 
  
 | 
  Varietas 
harperi
(Small) Rogers
 common name: 
Harper's flax
 | 
 | 
 
 
 | 
 
| 
82
 | 
 
  
 | 
  Varietas 
sulcatum
 common name: 
grooved flax
 | 
 | 
 
 
 | 
  
 | 
| 
83
 | 
 
  
 | 
  Species 
trigynum
L.
 common name: 
French flax
 | 
 | 
 
 
 | 
| 
84
 | 
 | 
|   | 
| 
85
 | 
 
  
 | 
  Varietas 
humile
(P. Mill.) Pers.
 syn. Linum usitatissimum
 | 
 | 
 
 
 | 
  
 | 
| 
86
 | 
 
  
 | 
  Species 
vernale
Woot.
 common name: 
Chihuahuan flax
 | 
 | 
 
 
 | 
| 
87
 | 
 
  
 | 
  Species 
virginianum
L.
 | 
 | 
 
 
 | 
|   | 
| 
88
 | 
 
  
 | 
  Varietas 
floridanum
Planch.
 syn. Linum floridanum var. floridanum
 | 
 | 
 
 
 | 
 
| 
89
 | 
 
  
 | 
  Varietas 
medium
Planch.
 syn. Linum medium var. medium
 | 
 | 
 
 
 | 
 
| 
90
 | 
 
  
 | 
  Varietas 
texanum
Planch.
 syn. Linum medium var. texanum
 | 
 | 
 
 
 | 
  
 | 
| 
91
 | 
 
  
 | 
  Species 
westii
Rogers
 common name: 
West's flax
 | 
 | 
 
 
 |