Contains 6 accepted taxa overall.
Characteristics
Classification
Citation
PENSTEMON Schmidel, Icon. Pl., ed. Keller t. 2. 1763.
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TYPE: Penstemon pubescens Aiton (Chelone pentstemon Linnaeus) Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 3: 182. 1913.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Penstemon australis | Southern Beardtongue, Sandhill Beardtongue | |||
| Penstemon calycosus | Longsepal Beardtongue | |||
| Penstemon canescens | Appalachian Beardtongue | |||
| Penstemon digitalis | Tall White Beardtongue | |||
| Penstemon laevigatus | Eastern Beardtongue | |||
| Penstemon smallii | Blue Ridge Beardtongue |
Identification Key
1. Stem and sometimes leaves stipitate-glandular
1. Stem and leaves eglandular
2
2. Leaves usually toothed; corolla throat internally with pinkish colored lines; pollen sacs opposite or divergent, navicular, subexplanate, or explanate, dehiscing completely
2. Leaves entire to obscurely undulate-crenate; corolla throat internally lacking darkened or colored lines; pollen sacs parallel, saccate, dehiscing incompletely, distal 2/3rd indehiscent
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||