Parent Category Figures
1 Penstemon cobaea 694
2 Penstemon digitalis 672
3 Penstemon newberryi 422
4 Penstemon centranthifolius 370
5 Penstemon heterophyllus 289
6 Penstemon barbatus 254
7 Penstemon spectabilis 248
8 Penstemon hirsutus 208
9 Penstemon eatonii 189
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 108
20 Penstemon davidsonii 103
21 Penstemon parryi 96
22 Penstemon grandiflorus 93
23 Penstemon deustus 79
24 Penstemon grinnellii 74
25 Penstemon clevelandii 74
26 Penstemon neomexicanus 73
27 Penstemon baccharifolius 70
28 Penstemon serrulatus 67
29 Penstemon albidus 66
30 Penstemon strictus 66
31 Penstemon canescens 58
32 Penstemon cyananthus 57
33 Penstemon gentianoides 56
34 Penstemon utahensis 54
35 Penstemon linarioides 47
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 virens 37
43 Penstemon gracilis 37
44 Penstemon rupicola 36
45 Penstemon bicolor 34
46 Penstemon fruticosus 34
47 Penstemon gracilentus 30
48 Penstemon laevigatus 29
49 Penstemon secundiflorus 29
50 Penstemon labrosus 28
51 Penstemon humilis 27
52 Penstemon australis 26
53 Penstemon virgatus 26
54 Penstemon cardwellii 25
55 Penstemon albomarginatus 25
56 Penstemon calycosus 22
57 Penstemon murrayanus 22
58 Penstemon confertus 22
59 Penstemon azureus 22
60 Penstemon pachyphyllus 21
61 Penstemon leonensis 19
62 Penstemon nitidus 19
63 Penstemon buckleyi 19
64 Penstemon angustifolius 18
65 Penstemon multiflorus 17
66 Penstemon amphorellae 16
67 Penstemon caesius 15
68 Penstemon tubiflorus 15
69 Penstemon ellipticus 15
70 Penstemon petiolatus 14
71 Penstemon comarrhenus 14
72 Penstemon albertinus 13
73 Penstemon caespitosus 13
74 Penstemon floridus 12
75 Penstemon glaber 12
76 Penstemon arkansanus 12
77 Penstemon incertus 11
78 Penstemon scapoides 11
79 Penstemon campanulatus 11
80 Penstemon attenuatus 11
81 Penstemon havardii 10
82 Penstemon patens 10
83 Penstemon ovatus 9
84 Penstemon tubaeflorus 9
85 Penstemon roezlii 9
86 Penstemon richardsonii 9
87 Penstemon unilateralis 9
88 Penstemon pruinosus 9
89 Penstemon gairdneri 8
90 Penstemon thurberi 8
91 Penstemon eriantherus 8
92 Penstemon pseudoputus 7
93 Penstemon acuminatus 7
94 Penstemon anguineus 7
95 Penstemon cyaneus 7
96 Penstemon thompsoniae 7
97 Penstemon platyphyllus 7
98 Penstemon miniatus 6
99 Penstemon leiophyllus 6
100 Penstemon grahamii 6
101 Penstemon lanceolatus 6
102 Penstemon barrettiae 6
103 Penstemon tenuiflorus 6
104 Penstemon scariosus 6
105 Penstemon gormanii 6
106 Penstemon payettensis 5
107 Penstemon isophyllus 5
108 Penstemon venustus 5
109 Penstemon oklahomensis 5
110 Penstemon globosus 5
111 Penstemon superbus 5
112 Penstemon pinifolius 5
113 Penstemon pumilus 5
114 Penstemon jamesii 5
115 Penstemon eximius 4
116 Penstemon purpusii 4
117 Penstemon arenicola 4
118 Penstemon subulatus 4
119 Penstemon mensarum 4
120 Penstemon cyanocaulis 4
121 Penstemon euglaucus 4
122 Penstemon montanus 4
123 Penstemon californicus 4
124 Penstemon wislizenii 4
125 Penstemon goodrichii 4
126 Penstemon acaulis 4
127 Penstemon triphyllus 3
128 Penstemon harbourii 3
129 Penstemon dolius 3
130 Penstemon nudiflorus 3
131 Penstemon subserratus 3
132 Penstemon dasyphyllus 3
133 Penstemon parvulus 3
134 Penstemon watsonii 3
135 Penstemon smallii 3
136 Penstemon immanifestus 3
137 Penstemon lentus 3
138 Penstemon flowersii 3
139 Penstemon wilcoxii 3
140 Penstemon rattanii 2
141 Penstemon flavescens 2
142 Penstemon fremontii 2
143 Penstemon fruticiformis 2
144 Penstemon glandulosus 2
145 Penstemon guadalupensis 2
146 Penstemon hartwegii 2
147 Penstemon deaveri 2
148 Penstemon inflatus 2
149 Penstemon crandallii 2
150 Penstemon neotericus 2
151 Penstemon osterhoutii 2
152 Penstemon clutei 2
153 Penstemon radicosus 2
154 Penstemon calcareus 2
155 Penstemon versicolor 2
156 Penstemon alluviorum 2
157 Penstemon lyallii 2
158 Penstemon x 1
159 Penstemon spatulatus 1
160 Penstemon breviculus 1
161 Penstemon bracteatus 1
162 Penstemon stenophyllus 1
163 Penstemon stephensii 1
164 Penstemon strictiformis 1
165 Penstemon pratensis 1
166 Penstemon plagapineus 1
167 Penstemon pennellianus 1
168 Penstemon peckii 1
169 Penstemon cinicola 1
170 Penstemon papillatus 1
171 Penstemon ophianthus 1
172 Penstemon oliganthus 1
173 Penstemon compactus 1
174 Penstemon concinnus 1
175 Penstemon monoensis 1
176 Penstemon miser 1
177 Penstemon atropurpureus 1
178 Penstemon minutifolius 1
179 Penstemon galloensis 1
180 Penstemon leonardii 1
181 Penstemon confusus 1
182 Penstemon wardii 1
183 Penstemon imberbis 1
184 Penstemon debilis 1
185 Penstemon discolor 1
186 Penstemon henricksonii 1
187 Penstemon wrightii 1
188 Penstemon hallii 1
189 Penstemon dissectus 1
190 Penstemon alamosensis 1
191 Penstemon griffinii 1
192 Penstemon elegantulus 1
193 Penstemon gentryi 1
194 Penstemon filiformis 1
195 Penstemon fasciculatus 1
196 Penstemon rubicundus 1
197 Penstemon sepalulus 1
198 Penstemon rhizomatosus 1