subgenus
Penstemon
Penstemon
Children
- Penstemon 49 native
- Glabri 28 native
- Cristati 23 native
- Saccanthera 19 native
- Coerulei 15 native
- Spectabiles 11 native
- Caespitosi 8 native
- Gentianoides 6 native
- Beard-tongue 4 native
- Ambigui 2 native
- Chamaeleon 2 native
- Bridgesiani 1 native
- Petiolati 1 native
- Baccharifolii 1 native
- Jones' Beardtongue native
- Penstemon × gloxinioides
- Parish's Penstemon native
- Penstemon × dubius native
- Penstemon × mirus
- Fasciculus
- Dissecti
- Penstemon × peirsonii
- Penstemon × crideri
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Top native Penstemon All
Native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
-
Beardlip Penstemon
Penstemon barbatus
caterpillars
9
food
3
flowers
53
-
Small-flower Beardtongue
Penstemon procerus
caterpillars
8
bees
1
food
2
flowers
74
-
Lilac Penstemon
Penstemon gracilis
caterpillars
7
bees
1
food
2
flowers
68
-
Hot Rock Penstemon
Penstemon deustus
caterpillars
7
bees
1
food
2
flowers
51
-
Large-flowered Beardtongue
Penstemon grandiflorus
caterpillars
7
bees
1
food
2
flowers
48
-
Rocky Mountain Beardtongue
Penstemon strictus
caterpillars
7
food
4
flowers
55
-
Fendler's Penstemon
Penstemon fendleri
caterpillars
7
food
3
flowers
43
-
Thurber's Beardtongue
Penstemon thurberi
caterpillars
7
food
3
flowers
36
-
White-flower Beardtongue
Penstemon albidus
caterpillars
7
food
2
flowers
52
-
Desert Penstemon
Penstemon pseudospectabilis
caterpillars
7
food
2
flowers
48
-
Foxglove Beardtongue
Penstemon digitalis
caterpillars
6
bees
1
food
3
flowers
63
-
Rydberg's Beardtongue
Penstemon rydbergii
caterpillars
6
bees
1
food
3
flowers
56
-
Low Beardtongue
Penstemon humilis
caterpillars
6
bees
1
food
2
flowers
53
-
Sulphur Penstemon
Penstemon attenuatus
caterpillars
6
bees
1
food
2
flowers
44
-
Richardson's Beardtongue
Penstemon richardsonii
caterpillars
6
bees
1
food
2
flowers
41