Penstemon cobaea

Penstemon cobaea is a flowering plant in the plantain family, commonly known as cobaea beardtongue,[2] prairie beardtongue or foxglove penstemon. The plant is native to the central United States, primarily the Great Plains from Nebraska to Texas, with additional populations in the Ozarks of Missouri and Arkansas. There are also populations reported in the southwestern United States as well as in Illinois and Ohio, but these appear to be introductions.[3][4]

Penstemon cobaea

Secure  (NatureServe)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: Penstemon
Species:
P. cobaea
Binomial name
Penstemon cobaea
Nutt. 1836
Synonyms[1]
  • Pentstemon Cobaea Nutt.

Habitat

Penstemon cobaea grows on hillsides, gravel, rocky outcrops, and gypsum soils, and eroded pastures.[5]

Description
Foxglove penstemon (Penstemon cobaea) on ranchland in the Texas Blackland Prairie eco-region. County Road 269, Lavaca County, Texas, USA (19 April 2014).

Penstemon cobaea is usually about 30 cm (1 foot) tall, occasionally as much as 60 cm (2 feet). Flowers has 5 lobes, with two large lobes on top and three small lobes on the bottom. The flowers have a structure reminiscent of a ribcage inside, and can be white or pink with magenta lines. The leaves of the plant are broad, at about 1.5 to 6 inches (3.8-15.0 cm) long and 0.5 to 2 inches (0.6-5.0 cm) wide.[5][6]

Cultivation

The flowers of Penstemon cobaea will eventually become brown and black capsules, which contain the seeds. After planting, the seeds will take about two years to flower. It is good to leave 16 to 20 inches between plants when gardening, and lime is often needed in the soil.[5]

References
  1. "Penstemon cobaea Nutt.". Tropicos. Missouri Botanical Garden.
  2. "Penstemon cobaea". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 22 September 2015.
  3. "Penstemon cobaea". Native Plant Database. Lady Bird Johnson Wildflower Center, University of Texas at Austin. Retrieved 2017-01-27.
  4. "Penstemon cobaea". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  5. Haddock, Mike (2018). "Cobaea penstemon". Kansas Wildflowers and Grasses.
  6. Nuttall, Thomas 1836. Transactions of the American Philosophical Society, new series 5(6[3]): 182 parallel descriptions in English + Latin, as Pentstemon Cobaea
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