Parent Category Figures
1 Penstemon cobaea 693
2 Penstemon digitalis 665
3 Penstemon newberryi 421
4 Penstemon centranthifolius 369
5 Penstemon heterophyllus 275
6 Penstemon spectabilis 248
7 Penstemon barbatus 247
8 Penstemon hirsutus 207
9 Penstemon eatonii 187
10 Penstemon palmeri 174
11 Penstemon laxiflorus 152
12 Penstemon rydbergii 133
13 Penstemon tenuis 130
14 Penstemon roseus 128
15 Penstemon whippleanus 120
16 Penstemon procerus 117
17 Penstemon heterodoxus 113
18 Penstemon rostriflorus 107
19 Penstemon speciosus 107
20 Penstemon davidsonii 103
21 Penstemon parryi 95
22 Penstemon grandiflorus 88
23 Penstemon deustus 78
24 Penstemon clevelandii 74
25 Penstemon grinnellii 73
26 Penstemon neomexicanus 71
27 Penstemon baccharifolius 66
28 Penstemon albidus 66
29 Penstemon serrulatus 66
30 Penstemon strictus 61
31 Penstemon canescens 58
32 Penstemon cyananthus 57
33 Penstemon utahensis 53
34 Penstemon gentianoides 51
35 Penstemon linarioides 46
36 Penstemon fendleri 43
37 Penstemon ambiguus 41
38 Penstemon triflorus 41
39 Penstemon pallidus 39
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 33
47 Penstemon gracilentus 30
48 Penstemon labrosus 28
49 Penstemon secundiflorus 28
50 Penstemon laevigatus 28
51 Penstemon humilis 27
52 Penstemon cardwellii 25
53 Penstemon virgatus 25
54 Penstemon albomarginatus 25
55 Penstemon australis 25
56 Penstemon confertus 22
57 Penstemon azureus 22
58 Penstemon calycosus 22
59 Penstemon murrayanus 22
60 Penstemon pachyphyllus 21
61 Penstemon buckleyi 19
62 Penstemon nitidus 19
63 Penstemon leonensis 18
64 Penstemon multiflorus 17
65 Penstemon amphorellae 16
66 Penstemon ellipticus 15
67 Penstemon tubiflorus 15
68 Penstemon caesius 15
69 Penstemon petiolatus 14
70 Penstemon angustifolius 14
71 Penstemon comarrhenus 14
72 Penstemon floridus 12
73 Penstemon arkansanus 12
74 Penstemon glaber 12
75 Penstemon caespitosus 12
76 Penstemon campanulatus 11
77 Penstemon attenuatus 11
78 Penstemon incertus 11
79 Penstemon scapoides 11
80 Penstemon albertinus 10
81 Penstemon patens 10
82 Penstemon richardsonii 9
83 Penstemon roezlii 9
84 Penstemon unilateralis 9
85 Penstemon pruinosus 9
86 Penstemon tubaeflorus 9
87 Penstemon gairdneri 8
88 Penstemon havardii 8
89 Penstemon ovatus 8
90 Penstemon thurberi 8
91 Penstemon cyaneus 7
92 Penstemon thompsoniae 7
93 Penstemon eriantherus 7
94 Penstemon anguineus 7
95 Penstemon pseudoputus 7
96 Penstemon platyphyllus 7
97 Penstemon miniatus 6
98 Penstemon barrettiae 6
99 Penstemon lanceolatus 6
100 Penstemon gormanii 6
101 Penstemon scariosus 6
102 Penstemon leiophyllus 6
103 Penstemon acuminatus 6
104 Penstemon tenuiflorus 6
105 Penstemon grahamii 6
106 Penstemon pumilus 5
107 Penstemon pinifolius 5
108 Penstemon isophyllus 5
109 Penstemon jamesii 5
110 Penstemon oklahomensis 5
111 Penstemon globosus 5
112 Penstemon superbus 5
113 Penstemon payettensis 5
114 Penstemon montanus 4
115 Penstemon venustus 4
116 Penstemon eximius 4
117 Penstemon euglaucus 4
118 Penstemon purpusii 4
119 Penstemon goodrichii 4
120 Penstemon wislizenii 4
121 Penstemon subulatus 4
122 Penstemon dasyphyllus 3
123 Penstemon dolius 3
124 Penstemon flowersii 3
125 Penstemon harbourii 3
126 Penstemon immanifestus 3
127 Penstemon lentus 3
128 Penstemon californicus 3
129 Penstemon nudiflorus 3
130 Penstemon smallii 3
131 Penstemon subserratus 3
132 Penstemon triphyllus 3
133 Penstemon wilcoxii 3
134 Penstemon parvulus 3
135 Penstemon cyanocaulis 3
136 Penstemon osterhoutii 2
137 Penstemon calcareus 2
138 Penstemon neotericus 2
139 Penstemon radicosus 2
140 Penstemon rattanii 2
141 Penstemon inflatus 2
142 Penstemon clutei 2
143 Penstemon crandallii 2
144 Penstemon hartwegii 2
145 Penstemon guadalupensis 2
146 Penstemon alluviorum 2
147 Penstemon lyallii 2
148 Penstemon fruticiformis 2
149 Penstemon fremontii 2
150 Penstemon arenicola 2
151 Penstemon flavescens 2
152 Penstemon versicolor 2
153 Penstemon watsonii 2
154 Penstemon acaulis 2
155 Penstemon deaveri 2
156 Penstemon henricksonii 1
157 Penstemon debilis 1
158 Penstemon spatulatus 1
159 Penstemon confusus 1
160 Penstemon hallii 1
161 Penstemon stenophyllus 1
162 Penstemon stephensii 1
163 Penstemon strictiformis 1
164 Penstemon wrightii 1
165 Penstemon x 1
166 Penstemon griffinii 1
167 Penstemon compactus 1
168 Penstemon glandulosus 1
169 Penstemon atropurpureus 1
170 Penstemon gentryi 1
171 Penstemon concinnus 1
172 Penstemon galloensis 1
173 Penstemon dissectus 1
174 Penstemon discolor 1
175 Penstemon pratensis 1
176 Penstemon pennellianus 1
177 Penstemon peckii 1
178 Penstemon ophianthus 1
179 Penstemon oliganthus 1
180 Penstemon papillatus 1
181 Penstemon filiformis 1
182 Penstemon monoensis 1
183 Penstemon fasciculatus 1
184 Penstemon wardii 1
185 Penstemon rhizomatosus 1
186 Penstemon minutifolius 1
187 Penstemon mensarum 1
188 Penstemon breviculus 1
189 Penstemon bracteatus 1
190 Penstemon rubicundus 1
191 Penstemon leonardii 1
192 Penstemon plagapineus 1
193 Penstemon imberbis 1
194 Penstemon cinicola 1
195 Penstemon elegantulus 1
196 Penstemon sepalulus 1