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1
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  Species 
acuminata
C.L. Boynt. & Beadle
 syn. Rudbeckia fulgida var. fulgida
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2
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  Species 
alismifolia
Torr. & Gray
 syn. Rudbeckia grandiflora var. alismifolia
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3
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  Species 
alpicola
Piper
 common name: 
showy coneflower
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4
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  Species 
ampla
A. Nels.
 syn. Rudbeckia laciniata var. ampla
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5
 | 
 
  
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  Species 
amplectens
T.V. Moore
 syn. Rudbeckia hirta var. hirta
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6
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  Species 
amplexicaulis
Vahl
 syn. Dracopis amplexicaulis
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| 
7
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  Species 
auriculata
(Perdue) Kral
 common name: 
eared coneflower
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| 
8
 | 
 
  
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  Species 
beadlei
Small p.p.
 syn. Rudbeckia triloba var. rupestris
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| 
9
 | 
 
  
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  Species 
bicolor
Nutt.
 common name: 
pinewoods coneflower
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| 
10
 | 
 
  
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  Species 
brittonii
Small
 syn. Rudbeckia hirta var. hirta
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| 
11
 | 
 
  
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  Species 
californica
Gray
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|   | 
| 
12
 | 
 
  
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  Varietas 
glauca
Blake
 syn. Rudbeckia glaucescens
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| 
13
 | 
 
  
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  Varietas 
intermedia
Perdue
 syn. Rudbeckia klamathensis
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14
 | 
 
  
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  Species 
chapmanii
C.L. Boynt. & Beadle
 syn. Rudbeckia fulgida var. umbrosa
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| 
15
 | 
 
  
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  Species 
columnaris
Pursh, non Sims
 syn. Ratibida columnifera
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| 
16
 | 
 
  
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  Species 
columnifera
Nutt.
 syn. Ratibida columnifera
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17
 | 
 
  
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  Species 
deamii
Blake
 syn. Rudbeckia fulgida var. deamii
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| 
18
 | 
 
  
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  Species 
divergens
T.V. Moore
 syn. Rudbeckia hirta var. angustifolia
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| 
19
 | 
 
  
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  Species 
floridana
T.V. Moore
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|   | 
| 
20
 | 
 
  
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  Varietas 
angustifolia
T.V. Moore
 syn. Rudbeckia hirta var. angustifolia
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| 
21
 | 
 
  
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  Species 
foliosa
C.L. Boynt. & Beadle
 syn. Rudbeckia fulgida var. fulgida
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| 
22
 | 
 
  
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  Species 
fulgida
Ait.
 common name: 
Orange coneflower
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|   | 
| 
23
 | 
 
  
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  Varietas 
auriculata
Perdue
 syn. Rudbeckia auriculata
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 | 
 
| 
24
 | 
 
  
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  Varietas 
deamii
(Blake) Perdue
 common name: 
Deam's coneflower
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 | 
 
| 
25
 | 
 
  
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  Varietas 
fulgida
 common name: 
orange coneflower
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| 
26
 | 
 
  
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  Varietas 
missouriensis
(Engelm. ex C.L. Boynt. & Beadle) Cronq.
 syn. Rudbeckia missouriensis
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 | 
 
| 
27
 | 
 
  
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  Varietas 
palustris
(Eggert ex C.L. Boynt. & Beadle) Perdue
 common name: 
prairie coneflower
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| 
28
 | 
 
  
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  Varietas 
spathulata
(Michx.) Perdue
 common name: 
orange coneflower
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| 
29
 | 
 
  
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  Varietas 
speciosa
(Wenderoth) Perdue
 common name: 
orange coneflower
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| 
30
 | 
 
  
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  Varietas 
sullivantii
(C.L. Boynt. & Beadle) Cronq.
 common name: 
Sullivant's coneflower
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 | 
 
| 
31
 | 
 
  
 | 
  Varietas 
umbrosa
(C.L. Boynt. & Beadle) Cronq.
 common name: 
orange coneflower
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| 
32
 | 
 
  
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  Species 
glabra
DC.
 syn. Rudbeckia nitida
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| 
33
 | 
 
  
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  Species 
glaucescens
Eastw.
 common name: 
waxy coneflower
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| 
34
 | 
 
  
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  Species 
globosa
Nutt.
 syn. Ratibida tagetes
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| 
35
 | 
 
  
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  Species 
graminifolia
(Torr. & Gray) C.L. Boynt. & Beadle
 common name: 
grassleaf coneflower
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| 
36
 | 
 
  
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  Species 
grandiflora
(D. Don) J.F. Gmel. ex DC.
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|   | 
| 
37
 | 
 
  
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  Varietas 
alismifolia
(Torr. & Gray) Cronq.
 common name: 
rough coneflower
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| 
38
 | 
 
  
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  Varietas 
grandiflora
 common name: 
rough coneflower
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| 
39
 | 
 
  
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  Species 
heliopsidis
Torr. & Gray
 common name: 
sunfacing coneflower
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| 
40
 | 
 
  
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  Species 
heterophylla
Torr. & Gray
 syn. Rudbeckia laciniata var. digitata
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41
 | 
 
  
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  Species 
hirta
L.
 common name: 
coneflower, black-eyed Susan
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|   | 
| 
42
 | 
 
  
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  Varietas 
angustifolia
(T.V. Moore) Perdue
 common name: 
blackeyed Susan
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| 
43
 | 
 
  
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  Varietas 
brittonii
(Small) Fern.
 syn. Rudbeckia hirta var. hirta
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| 
44
 | 
 
  
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  Varietas 
corymbifera
Fern.
 syn. Rudbeckia hirta var. pulcherrima
 | 
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 | 
 
| 
45
 | 
 
  
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  Varietas 
floridana
(T.V. Moore) Perdue
 common name: 
blackeyed Susan
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| 
46
 | 
 
  
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  Varietas 
hirta
 common name: 
blackeyed Susan
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| 
47
 | 
 
  
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  Varietas 
lanceolata
(Bisch.) Core
 syn. Rudbeckia hirta var. pulcherrima
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| 
48
 | 
 
  
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  Varietas 
monticola
(Small) Fern.
 syn. Rudbeckia hirta var. hirta
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| 
49
 | 
 
  
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  Varietas 
pulcherrima
Farw.
 common name: 
blackeyed Susan
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| 
50
 | 
 
  
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  Varietas 
sericea
(T.V. Moore) Fern.
 syn. Rudbeckia hirta var. pulcherrima
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| 
51
 | 
 
  
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  Varietas 
serotina
(Nutt.) Core
 syn. Rudbeckia hirta var. pulcherrima
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| 
52
 | 
 
  
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  Species 
klamathensis
P. Cox & Urbatsch
 common name: 
Klamath coneflower
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| 
53
 | 
 
  
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  Species 
laciniata
L.
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|   | 
| 
54
 | 
 
  
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  Subspecies 
ampla
(A. Nels.) W.A. Weber
 syn. Rudbeckia laciniata var. ampla
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| 
55
 | 
 
  
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  Varietas 
ampla
(A. Nels.) Cronq.
 common name: 
cutleaf coneflower
 | 
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| 
56
 | 
 
  
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  Varietas 
bipinnata
Perdue
 common name: 
cutleaf coneflower
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 | 
 
| 
57
 | 
 
  
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  Varietas 
digitata
(P. Mill.) Fiori
 common name: 
cutleaf coneflower
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 | 
 
| 
58
 | 
 
  
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  Varietas 
hortensis
Bailey
 syn. Rudbeckia laciniata var. laciniata
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 | 
 
| 
59
 | 
 
  
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  Varietas 
humilis
Gray
 common name: 
greenhead coneflower
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 | 
 
| 
60
 | 
 
  
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  Varietas 
laciniata
 common name: 
cutleaf coneflower
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| 
61
 | 
 
  
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  Species 
longipes
T.V. Moore
 syn. Rudbeckia hirta var. pulcherrima
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| 
62
 | 
 
  
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  Species 
maxima
Nutt.
 common name: 
great coneflower
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| 
63
 | 
 
  
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  Species 
missouriensis
Engelm. ex C.L. Boynt. & Beadle
 common name: 
Missouri orange coneflower
 | 
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| 
64
 | 
 
  
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  Species 
mohrii
Gray
 common name: 
Mohr's coneflower
 | 
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| 
65
 | 
 
  
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  Species 
mollis
Ell.
 common name: 
softhair coneflower
 | 
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| 
66
 | 
 
  
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  Species 
montana
Gray
 common name: 
montane coneflower
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| 
67
 | 
 
  
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  Species 
monticola
Small
 syn. Rudbeckia hirta var. hirta
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| 
68
 | 
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|   | 
| 
69
 | 
 
  
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  Varietas 
texana
Perdue
 syn. Rudbeckia texana
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 | 
 
 
 | 
  
 | 
| 
70
 | 
 
  
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  Species 
occidentalis
Nutt.
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|   | 
| 
71
 | 
 
  
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  Varietas 
alpicola
(Piper) Cronq.
 syn. Rudbeckia alpicola
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 | 
 
 
 | 
 
| 
72
 | 
 
  
 | 
  Varietas 
montana
(Gray) Perdue
 syn. Rudbeckia montana
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 | 
 
 
 | 
  
 | 
| 
73
 | 
 
  
 | 
  Species 
pallida
Nutt.
 syn. Echinacea pallida
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 | 
 
 
 | 
| 
74
 | 
 
  
 | 
  Species 
palustris
Eggert ex C.L. Boynt. & Beadle
 syn. Rudbeckia fulgida var. palustris
 | 
 | 
 
 
 | 
| 
75
 | 
 
  
 | 
  Species 
pinnata
Vent.
 syn. Ratibida pinnata
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| 
76
 | 
 
  
 | 
  Species 
pinnatiloba
(Torr. & Gray) Beadle
 syn. Rudbeckia triloba var. pinnatiloba
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| 
77
 | 
 
  
 | 
  Species 
rupestris
Chickering
 syn. Rudbeckia triloba var. rupestris
 | 
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 | 
| 
78
 | 
 
  
 | 
  Species 
scabrifolia
L.E. Brown
 common name: 
roughleaf coneflower
 | 
 | 
 
 
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| 
79
 | 
 
  
 | 
  Species 
sericea
T.V. Moore
 syn. Rudbeckia hirta var. pulcherrima
 | 
 | 
 
 
 | 
| 
80
 | 
 
  
 | 
  Species 
serotina
Nutt.
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 | 
 
 
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|   | 
| 
81
 | 
 
  
 | 
  Varietas 
corymbifera
(Fern.) Fern. & Schub.
 syn. Rudbeckia hirta var. pulcherrima
 | 
 | 
 
 
 | 
 
| 
82
 | 
 
  
 | 
  Varietas 
lanceolata
(Bisch.) Fern. & Schub.
 syn. Rudbeckia hirta var. pulcherrima
 | 
 | 
 
 
 | 
 
| 
83
 | 
 
  
 | 
  Varietas 
sericea
(T.V. Moore) Fern. & Schub.
 syn. Rudbeckia hirta var. pulcherrima
 | 
 | 
 
 
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| 
84
 | 
 
  
 | 
  Species 
spathulata
Michx.
 syn. Rudbeckia fulgida var. spathulata
 | 
 | 
 
 
 | 
| 
85
 | 
 
  
 | 
  Species 
speciosa
Wenderoth
 | 
 | 
 
 
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|   | 
| 
86
 | 
 
  
 | 
  Varietas 
sullivantii
(C.L. Boynt. & Beadle) B.L. Robins.
 syn. Rudbeckia fulgida var. sullivantii
 | 
 | 
 
 
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 | 
| 
87
 | 
 
  
 | 
  Species 
subtomentosa
Pursh
 common name: 
sweet coneflower
 | 
 | 
 
 
 | 
| 
88
 | 
 
  
 | 
  Species 
sullivantii
C.L. Boynt. & Beadle
 syn. Rudbeckia fulgida var. sullivantii
 | 
 | 
 
 
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| 
89
 | 
 
  
 | 
  Species 
tagetes
James
 syn. Ratibida tagetes
 | 
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 | 
| 
90
 | 
 
  
 | 
  Species 
tenax
C.L. Boynt. & Beadle
 syn. Rudbeckia fulgida var. fulgida
 | 
 | 
 
 
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| 
91
 | 
 
  
 | 
  Species 
texana
(Perdue) P. Cox & Urbatsch
 common name: 
Texas coneflower
 | 
 | 
 
 
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| 
92
 | 
 
  
 | 
  Species 
triloba
L.
 | 
 | 
 
 
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|   | 
| 
93
 | 
 
  
 | 
  Varietas 
beadlei
(Small) Fern. p.p.
 syn. Rudbeckia triloba var. rupestris
 | 
 | 
 
 
 | 
 
| 
94
 | 
 
  
 | 
  Varietas 
pinnatiloba
Torr. & Gray
 common name: 
browneyed Susan
 | 
 | 
 
 
 | 
 
| 
95
 | 
 
  
 | 
  Varietas 
rupestris
(Chickering) Gray
 common name: 
browneyed Susan
 | 
 | 
 
 
 | 
 
| 
96
 | 
 
  
 | 
  Varietas 
triloba
 common name: 
browneyed Susan
 | 
 | 
 
 
 | 
  
 | 
| 
97
 | 
 
  
 | 
  Species 
truncata
Small
 syn. Rudbeckia fulgida var. fulgida
 | 
 | 
 
 
 | 
| 
98
 | 
 
  
 | 
  Species 
umbrosa
C.L. Boynt. & Beadle
 syn. Rudbeckia fulgida var. umbrosa
 | 
 | 
 
 
 |