Penstemon scariosus
Appearance
Penstemon scariosus | |
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var. albifluvis | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Plantaginaceae |
Genus: | Penstemon |
Species: | P. scariosus
|
Binomial name | |
Penstemon scariosus Pennell
|
Penstemon scariosus is a species of flowering plant in the plantain family known by the common name White River beardtongue. It is native to Colorado, Utah, and Wyoming in the United States.[1]
There are four varieties of this species, including var. albifluvis (White River beardtongue), var. cyanomontanus (Neese's Blue Mountain beardtongue), and var. garrettii (Garrett's beardtongue).[2] The var. albifluvis is a rare variety limited to northeastern Utah and northwestern Colorado. It is up to 30 centimeters tall and produces lavender or light blue flowers.[3] The flowers are pollinated by bees.[4] This variety is a candidate for federal protection because it grows on oil shale, a common source of petroleum.[5]
References
[edit]- ^ Penstemon scariosus. The Nature Conservancy.
- ^ Penstemon scariosus. USDA Plants Profile.
- ^ var. albifluvis. Archived 2011-10-26 at the Wayback Machine Center for Plant Conservation.
- ^ Lewinsohn, J. S., et al. (2007). Breeding biology and flower visitors of the rare White River pentstemon, Penstemon scariosus var. albifluvis (Scrophulariaceae). Western North American Naturalist 67(2):232-237.
- ^ var. albifluvis.[permanent dead link] USDA NRCS Plant Guide.