Penstemon barrettiae

Penstemon barrettiae

Imperiled  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: Penstemon
Species: P. barrettiae
Binomial name
Penstemon barrettiae
A.Gray

Penstemon barrettiae is a species of flowering plant in the plantain family known by the common name Barrett's beardtongue. It is endemic to the Pacific Northwest of North America, where it occurs only in Washington and Oregon.[1][2][3]

This species is a perennial herb[3] or shrub[2] growing 20 to 40 centimeters tall. It is hairless and the leaves and inflorescence are waxy in texture. The oppositely arranged, blue-green leaves are stiff and leathery and have smooth or slightly serrated edges. The leaf pairs on the stem are up to 3.5 centimeters long and have clasping bases. The flowers are pink or light purple-tinged and tubular in shape. They are over 3 centimeters long and 1 centimeter wide at the lipped mouth.[3] Flowering occurs in April through June.[2]

This plant generally grows on cliffs and rock outcrops. The soils are thin. The plant may anchor in rock cracks and crevices in talus. It may be found on roadsides in appropriate habitat.[1]

This species is limited to a small area in southern Washington and northern Oregon, where it can be found in the Columbia River Gorge and the Klickitat River canyon. Threats to the species include poaching, road maintenance, herbicides, quarrying, logging, and recreational activity.[2]

Penstemon barrettiae is included in Penstemon subgenus Dasanthera, along with P. cardwellii, P. davidsonii, P. ellipticus, P. fruticosus, P. lyallii, P. montanus, P. newberryi, and P. rupicola.[4]

Wikimedia Commons has media related to Penstemon barrettiae.

References

  1. 1 2 Penstemon barrettiae. Center for Plant Conservation.
  2. 1 2 3 4 Penstemon barrettiae. The Nature Conservancy.
  3. 1 2 3 Penstemon barrettiae. Washington Burke Museum.
  4. ↑ "Penstemon - Dasanthera Group". North American Rock Garden Society. Retrieved June 21, 2014.
This article is issued from Wikipedia - version of the 6/21/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.