Penstemon virgatus var. asa-grayi
(Upland Blue Beardtongue)
Penstemon virgatus var. asa-grayi, Hewlett Gulch Trail, Poudre Canyon, Larimer Co. 7931
Penstemon virgatus var. asa-grayi, Hewlett Gulch Trail, Poudre Canyon, Larimer Co. 7916
Penstemon virgatus var. asa-grayi, Hewlett Gulch Trail, Poudre Canyon, Larimer Co. 7925
Penstemon virgatus var. asa-grayi, Fourmile Area, Chaffee Co. 6290
Penstemon virgatus var. asa-grayi, Four Mile Area, Chaffee Co. 9842
Penstemon virgatus var. asa-grayi, Fourmile Area, Chaffee Co. 6422
Penstemon virgatus var. asa-grayi, Fourmile Area, Chaffee Co. 6489
Penstemon virgatus var. asa-grayi, Fourmile Area, Chaffee Co. 6498
| Scientific Name | Penstemon virgatus var. asa-grayi (Penstemon unilateralis) | USDA PLANTS Symbol | PEVIA |
| Common Name | Upland Blue Beardtongue, Beardless Sidebells Penstemon | ITIS Taxonomic Serial No. | 538522 |
| Family | Plantaginaceae (Plantain) formerly Scrophulariaceae | SEINet Reference |
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| Description |
Life zones and habitat: Plains to montane (4400 to 10000 ft). Grasslands, meadows, rocky hillsides and moist locations in coniferous forests. Plant: Erect unbranched perennial 1 to 2+ feet tall, multiple stems, usually in colonies. Leaves: Basal leaves narrowly to widely oblanceolate 3/4 to 4 inches long; stem leaves linear to lanceolate; both smooth with entire margins. Inflorescence: Hairless flowers in a thryse, tending to be on one side of the stem; each 5-lobed flower about 1 inch long, pale purple, sepals purplish with smooth edges; stamens and anthers hairless, staminode (unfertile stamen in center) hairless or with small hairs at tip. Bloom Period: June to August. References: "Flora of Colorado" by Jennifer Ackerfield and American Southwest. |
BONAP Distribution Map
Map Color Key | Colorado Status: Native |
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Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains