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Penstemon cyathophorus
Cupped penstemon (Penstemon cyathophorus) is a small, hairless perennial wildflower from the mountain basins of northern Colorado and southern Wyoming, usually found among sagebrush. It is a rare, limited-range species, so the key is to grow it in cool, well-drained, sunny conditions similar to its native high-elevation sites.
Penstemon cyathophorus, commonly known as cupped penstemon or Middle Park penstemon, is a species of flowering plant that grows in a small area in the mountains of northern Colorado and a smaller area of southern Wyoming. As a rare species with a limited range it is vulnerable to human development. It is not a large plant and is often found growing amid sagebrush plants in mountain basins and valleys.
Penstemon cyathophorus has a limited range, sources in agree that it grows in Summit, Grand, and Jackson County in Colorado and also in Carbon County, Wyoming. The USDA Natural Resources Conservation Service PLANTS database additionally records it in Sweetwater County, Wyoming as does the Colorado Native Plant Society. In Colorado it grows amid the sagebrush in Middle Park and in North Park, two flat basins surrounded by the Rocky Mountains. In Wyoming they grow on the Sierra Madre Range and North Platte River Valley. They grow between 2100–2900 meters in elevation in rocky clay loam soils.
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 cyathophorus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
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.
