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Penstemon rostriflorus
Also called Bridges' Penstemon, Bridges's Penstemon, Beak Flower Beardtongue, Bridge's Beardtongue, Bridge's Penstemon, Scarlet Beardtongue, Beaked Beardtongue
Penstemon rostriflorus is a species of penstemon known as beak-flowered penstemon or beaked penstemon from the southwestern United States and Baja California.
The beaked penstemon has a long history of cultivation and is valued by gardeners for its moderate size being significantly shorter than the red flowered golden-beard penstemon (Penstemon barbatus) and for its long flowering period, from early to late Summer. It is tolerant of a wide range of soils including clay, loam, and sandy and is hardy in USDA Zones 4b–8. It is grown from seeds, which require a 45-day cold-moist stratification. In garden conditions it is a long-lived plant.
Beaked penstemon is native to the southwestern United States and Baja California in northwestern Mexico. In Baja California it grows in the Sierra de Juárez range and may also grow in northern Sierra de San Pedro Mártir. They grow on the eastern side of the Sierra Nevada in California and south in the Transverse Ranges, the Peninsular Ranges, and the San Jacinto Mountains. In Nevada and Utah they are found in the southern half of each state and in the northern part of Arizona. In New Mexico it is recorded in just two widely separated western counties, San Juan and Catron, but in Colorado the species is known in the three southwestern counties; Dolores, Montezuma, and La Plata. It can be found at elevations of 1,200 to 3,200 meters (3,900–10,500 ft).
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 rostriflorus 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.
