Penstemon rydbergii

(Rydberg's Penstemon)

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Penstemon rydbergii, Lower Cataract Lake, Summit Co. 1298

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Penstemon rydbergii, Lower Cataract Lake, Summit Co. 1352/1364

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Penstemon rydbergii, Lower Cataract Lake, Summit Co. 1368/1395

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Penstemon rydbergii, Lower Cataract Lake, Summit Co. 1445/1460

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Penstemon rydbergii, Lower Cataract Lake, Summit Co. 1300

Scientific Name Penstemon rydbergii USDA PLANTS Symbol PERY
Common Name Rydberg's Penstemon, Meadow Beardtongue ITIS Taxonomic Serial No. 33990
Family Plantaginaceae (Plantain) formerly Scrophulariaceae SEINet
Reference
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Description Life zones and habitat: Montane and alpine (7500 to 12000 ft). Sunny mountain slopes, alpine meadows, forest openings and streamsides.
Plant: Erect perennial with single or a clump of multiple leafy, usually smooth, stems up to 2 feet tall; stems may be decumbent at base.
Leaves: Basal leaves oblanceolate and petiolate, up to 2-3/4 inches; stem leaves lanceolate, sessile, opposite and shorter; all are usually smooth with entire margins;
Inflorescence: Clusters (2 to 7) atop and along stem of blue to purple flowers pointing radially all directions from the stem; corolla smooth on outside, lower lobes with bearded; staminode with a dense tuft of golden hairs at tip; smooth black anthers.
Bloom Period: June to August.
References: "The Alpine Flora of the Rocky Mountains" by Richard W. Scott, "Flora of Colorado" by Jennifer Ackerfield and American Southwest
BONAP Distribution Map

Map Color Key
Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County