Parent Category Figures
1 Penstemon cobaea 694
2 Penstemon digitalis 668
3 Penstemon newberryi 422
4 Penstemon centranthifolius 369
5 Penstemon heterophyllus 289
6 Penstemon barbatus 254
7 Penstemon spectabilis 248
8 Penstemon hirsutus 207
9 Penstemon eatonii 187
10 Penstemon palmeri 175
11 Penstemon laxiflorus 152
12 Penstemon roseus 135
13 Penstemon rydbergii 133
14 Penstemon tenuis 130
15 Penstemon whippleanus 121
16 Penstemon procerus 118
17 Penstemon heterodoxus 113
18 Penstemon rostriflorus 108
19 Penstemon speciosus 107
20 Penstemon davidsonii 103
21 Penstemon parryi 96
22 Penstemon grandiflorus 90
23 Penstemon deustus 78
24 Penstemon grinnellii 74
25 Penstemon clevelandii 74
26 Penstemon neomexicanus 73
27 Penstemon baccharifolius 70
28 Penstemon serrulatus 67
29 Penstemon strictus 66
30 Penstemon albidus 66
31 Penstemon canescens 58
32 Penstemon cyananthus 57
33 Penstemon gentianoides 56
34 Penstemon utahensis 54
35 Penstemon linarioides 46
36 Penstemon fendleri 43
37 Penstemon ambiguus 42
38 Penstemon triflorus 41
39 Penstemon pallidus 40
40 Penstemon laetus 39
41 Penstemon pseudospectabilis 38
42 Penstemon gracilis 37
43 Penstemon virens 37
44 Penstemon rupicola 36
45 Penstemon fruticosus 34
46 Penstemon bicolor 34
47 Penstemon gracilentus 30
48 Penstemon secundiflorus 29
49 Penstemon labrosus 28
50 Penstemon laevigatus 28
51 Penstemon humilis 27
52 Penstemon virgatus 26
53 Penstemon cardwellii 25
54 Penstemon australis 25
55 Penstemon albomarginatus 25
56 Penstemon murrayanus 22
57 Penstemon calycosus 22
58 Penstemon confertus 22
59 Penstemon azureus 22
60 Penstemon pachyphyllus 21
61 Penstemon nitidus 19
62 Penstemon buckleyi 19
63 Penstemon leonensis 19
64 Penstemon angustifolius 18
65 Penstemon multiflorus 17
66 Penstemon amphorellae 16
67 Penstemon ellipticus 15
68 Penstemon tubiflorus 15
69 Penstemon caesius 15
70 Penstemon comarrhenus 14
71 Penstemon petiolatus 14
72 Penstemon albertinus 13
73 Penstemon arkansanus 12
74 Penstemon caespitosus 12
75 Penstemon floridus 12
76 Penstemon glaber 12
77 Penstemon attenuatus 11
78 Penstemon incertus 11
79 Penstemon campanulatus 11
80 Penstemon scapoides 11
81 Penstemon patens 10
82 Penstemon havardii 10
83 Penstemon tubaeflorus 9
84 Penstemon richardsonii 9
85 Penstemon pruinosus 9
86 Penstemon roezlii 9
87 Penstemon ovatus 9
88 Penstemon unilateralis 9
89 Penstemon gairdneri 8
90 Penstemon thurberi 8
91 Penstemon anguineus 7
92 Penstemon acuminatus 7
93 Penstemon eriantherus 7
94 Penstemon thompsoniae 7
95 Penstemon cyaneus 7
96 Penstemon pseudoputus 7
97 Penstemon platyphyllus 7
98 Penstemon lanceolatus 6
99 Penstemon leiophyllus 6
100 Penstemon scariosus 6
101 Penstemon barrettiae 6
102 Penstemon tenuiflorus 6
103 Penstemon miniatus 6
104 Penstemon grahamii 6
105 Penstemon gormanii 6
106 Penstemon jamesii 5
107 Penstemon pinifolius 5
108 Penstemon pumilus 5
109 Penstemon payettensis 5
110 Penstemon isophyllus 5
111 Penstemon oklahomensis 5
112 Penstemon globosus 5
113 Penstemon superbus 5
114 Penstemon venustus 5
115 Penstemon eximius 4
116 Penstemon euglaucus 4
117 Penstemon goodrichii 4
118 Penstemon cyanocaulis 4
119 Penstemon mensarum 4
120 Penstemon montanus 4
121 Penstemon purpusii 4
122 Penstemon californicus 4
123 Penstemon subulatus 4
124 Penstemon wislizenii 4
125 Penstemon immanifestus 3
126 Penstemon lentus 3
127 Penstemon nudiflorus 3
128 Penstemon parvulus 3
129 Penstemon wilcoxii 3
130 Penstemon watsonii 3
131 Penstemon flowersii 3
132 Penstemon dolius 3
133 Penstemon triphyllus 3
134 Penstemon harbourii 3
135 Penstemon subserratus 3
136 Penstemon smallii 3
137 Penstemon dasyphyllus 3
138 Penstemon clutei 2
139 Penstemon neotericus 2
140 Penstemon lyallii 2
141 Penstemon radicosus 2
142 Penstemon rattanii 2
143 Penstemon crandallii 2
144 Penstemon inflatus 2
145 Penstemon flavescens 2
146 Penstemon calcareus 2
147 Penstemon deaveri 2
148 Penstemon hartwegii 2
149 Penstemon guadalupensis 2
150 Penstemon glandulosus 2
151 Penstemon versicolor 2
152 Penstemon arenicola 2
153 Penstemon acaulis 2
154 Penstemon fruticiformis 2
155 Penstemon fremontii 2
156 Penstemon alluviorum 2
157 Penstemon osterhoutii 2
158 Penstemon spatulatus 1
159 Penstemon breviculus 1
160 Penstemon bracteatus 1
161 Penstemon stenophyllus 1
162 Penstemon stephensii 1
163 Penstemon strictiformis 1
164 Penstemon henricksonii 1
165 Penstemon pratensis 1
166 Penstemon filiformis 1
167 Penstemon papillatus 1
168 Penstemon monoensis 1
169 Penstemon hallii 1
170 Penstemon alamosensis 1
171 Penstemon dissectus 1
172 Penstemon griffinii 1
173 Penstemon plagapineus 1
174 Penstemon concinnus 1
175 Penstemon elegantulus 1
176 Penstemon atropurpureus 1
177 Penstemon ophianthus 1
178 Penstemon compactus 1
179 Penstemon gentryi 1
180 Penstemon confusus 1
181 Penstemon cinicola 1
182 Penstemon wardii 1
183 Penstemon pennellianus 1
184 Penstemon rhizomatosus 1
185 Penstemon galloensis 1
186 Penstemon peckii 1
187 Penstemon leonardii 1
188 Penstemon fasciculatus 1
189 Penstemon rubicundus 1
190 Penstemon wrightii 1
191 Penstemon imberbis 1
192 Penstemon minutifolius 1
193 Penstemon oliganthus 1
194 Penstemon debilis 1
195 Penstemon sepalulus 1
196 Penstemon discolor 1
197 Penstemon x 1