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bush penstemon
51%
Penstemon fruticosus
royal penstemon
51%
Penstemon speciosus
woodland beardtongue
51%
Nothochelone nemorosa
cliff beardtongue
50%
Penstemon rupicola
serrulate penstemon
47%
Penstemon serrulatus
Davidson's penstemon
45%
Penstemon davidsonii
lowly penstemon
43%
Penstemon humilis
Gairdner's beardtongue
41%
Penstemon gairdneri
cutleaf beardtongue
36%
Penstemon richardsonii
littleflower penstemon
36%
Penstemon procerus
sulphur penstemon
33%
Penstemon attenuatus
stickystem penstemon
32%
Penstemon glandulosus
Cardwell's penstemon
31%
Penstemon cardwellii
twoleaf beardtongue
30%
Penstemon diphyllus
yellow penstemon
29%
Penstemon confertus
Death Valley beardtongue
29%
Penstemon fruticiformis
egg-leaf beardtongue
28%
Penstemon ovatus
finetooth beardtongue
27%
Penstemon subserratus
sharpleaf penstemon
27%
Penstemon acuminatus
glaucous beardtongue
26%
Penstemon euglaucus
Chelan penstemon
26%
Penstemon pruinosus
Rydberg's penstemon
26%
Penstemon rydbergii
scabland penstemon
24%
Penstemon deustus
Riggin's penstemon
24%
Penstemon triphyllus
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