Rock Garden Plants
Penstemon ambiguus Torr. sect. Ambigui 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon ambiguus Torr. sect. Ambigui
SynonymsLeiostemon ambiguus (Torr.) Greene
Habitatsagebrush wilding
Altitude700-2100m
Descriptionstems glabrous, difusely ramose, leaves linear, mucronate, bracts subulate, floral pedicels opposite, 1-3-flowered, calyx glabrous, lobes ovate, shortly acuminate, corolla 2cm
Size20-60cm
Colorpinkish white, white
Bloomsummer
Ca
Typesubshrub
Cultivationsunny site with a deep, drained soil
alpine house, rich, 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 )
     North-Central U.S.A. (Kansas , Nebraska , Oklahoma )
     Southwestern U.S.A.
     South-Central U.S.A. (New Mexico , Texas )
     Mexico
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

PLANTAGINACEAE

Penstemon ambiguus Torr., Ann. Lyceum Nat. Hist. New York 2(7): 228 (1827)

Synonyms:
Leiostemon ambiguus (Torr.) Greene
=============================================================================
ambiguus typicus ined.

Synonyms:
Penstemon ambiguus foliosus Benth.

Colorado, c. USA
73 COL 74 KAN NEB OKL 77 NWM TEX

700-2100m

ambiguus laevissimus D.D.Keck, J. Wash. Acad. Sci. 29: 491 (1939)

s. USA, ne. Mexico
76 ARI NEV UTA 77 NWM TEX 79 MXE

700-1800m

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