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Penstemon discolor
Also called Catalina Beardtongue
Penstemon discolor is a rare plant native to just the mountains of southeastern Arizona.
Penstemon discolor is endemic to just southeastern Arizona. According to the Natural Resources Conservation Service it grows in Pinal, Graham, Pima, Santa Cruz, and Cochise counties. It is definitionally found in the Santa Teresa, Dragoon, Santa Catalina, Galiuro, and Winchester mountains and might also be present in the Atascosa Mountains in southern Arizona. It grows at elevations of 1,500 to 2,300 meters (4,900–7,500 ft). The total extent of its range is about 1,000 to 5,000 square kilometers (390–1,930 sq mi).
Though its flowers are small, Penstemon discolor is cultivated, especially in rock gardens and by penstemon enthusiasts. It is also one of just 24 species in the penstemon genus with white or nearly white flowers. The seeds require 12-weeks of cold-moist stratification for good germination.
Firleaf beardtongue · Stemless beardtongue · Sharpleaf penstemon · Los Alamos beardtongue · Alberta beardtongue · White penstemon · White River Beardtongue · Whitemargin beardtongue · Gilia beardtongue · Penstemon angelicus · Siskiyou beardtongue · Broadbeard beardtongue
Text excerpted from the Wikipedia article Penstemon discolor by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
