| Family | PLANTAGINACEAE |
| Genus species | Penstemon arkansanus Pennell sect. Penstemon |
| Synonyms | Penstemon multicaulis Pennell |
| Penstemon wherryi Pennell | |
| Habitat | grassland and thickets |
| Altitude | 60-300m |
| Description | stems adpressed hirsute, stem leaves 8-12-pairs, sessile, lanceolate, serrate or dentate, acute to acuminate, thyrsus interrupted, whorls 4-8, corolla tubular |
| Size | 20-45cm |
| Color | white |
| Bloom | spring, early summer |
| Ca | |
| Type | subshrub |
| Cultivation | mesic, slightly humous, semi-shady site alpine house, moist, rich, drained soil, semi-shade |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C cuttings in late summer |
| Territory |
Northern America
North-Central U.S.A. (Missouri , Oklahoma ) Southeastern U.S.A. (Arkansas) |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
| Comments | PLANTAGINACEAE
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