Rock Garden Plants
Penstemon caespitosus Nutt. ex A.Gray sect. Caespitosi 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon caespitosus Nutt. ex A.Gray sect. Caespitosi
Habitatrocky slopes
Altitude1500-3700m
Descriptiongrey strigose, leaves 5-15mm, spathulate or oblanceolate, 5-15mm, flowers few in cluster, calyx strigose, corolla 15-20mm, tubular-infundibuliform, staminodium barbate
Size2-10cm
Colorblue, bluish violet
Bloomsummer
Ca-
Typesubshrub, carpet
Cultivationsunny, dry, rock crevices, protection against winter wet
alpine house, poor, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
cuttings in late summer
Territory Northern America
     Northwestern U.S.A. (Colorado , Wyoming )
     Southwestern U.S.A. (Utah)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
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Comments

PLANTAGINACEAE

Penstemon caespitosus Nutt. ex A.Gray, Proc. Amer. Acad. Arts 6: 66 (1862)

1500-2600m
=============================================================================caespitosus typicus D.D.Keck, Bull. Torrey Bot. Club. 64: 363 (1937)

Colorado, Wyoming, Utah
73 COL WYO 76 UTA

2000-3700m

caespitosus desertipicti (A.Nelson) D.D.Keck, ibid.

Basionym:
Penstemon desertipicti A.Nelson, Univ. Wyoming, Publ. Sci., Bot. 1: 130 (1926)

Arizona, Utah
76 ARI UTA

1500-2800m

caespitosus perbrevis Pennell, Contr. U.S. Natl. Herb. 20: 375 (1920)

Colorado, Utah
73 COL 76 UTA

2100-2900m

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