Rock Garden Plants
Penstemon cyathophorus Rydb. sect. Coerulei 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon cyathophorus Rydb. sect. Coerulei
Habitatsagebrush wilding
Altitude2100-2900m
Descriptionglabrous, grey-blue, lower leaves broadly lanceolate, to 6cm long, upwards reduced, bracts suborbiculate, inflorescence spicate, flowers 9-15mm, staminodium barbate
Size20-40cm
Colorbright blue, pink, white
Bloomsummer
Ca
Typetuft
Cultivationsunny site with a poor, sandy soil
alpine house, sandy soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
division in spring; cuttings in late summer
Territory Northern America
     Northwestern U.S.A. (Colorado , Wyoming)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

PLANTAGINACEAE

Penstemon cyathophorus Rydb., Bull. Torrey Bot. Club 31: 643 (1905)

Colorado, Wyoming
73 COL WYO

2100-2900m

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(c) 1990-2021 RNDr. Pavel Slabý