Rock Garden Plants
Penstemon secundiflorus Benth. sect. Coerulei 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon secundiflorus Benth. sect. Coerulei
SynonymsPenstemon unilateralis Rydb.
Habitatrocky slopes
Altitude1400-2900m
Descriptionglabrous, grey-green, leaves entire, carnose, mucronate, oblanceolate to lanceolate, 2-7cm, inflorescence secund, flowers 15-24mm long
Size15-45cm
Colorpurple
Bloomsummer
Ca
Typetuft
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 )
     South-Central U.S.A.
     Mexico
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
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Comments

PLANTAGINACEAE

Penstemon secundiflorus Benth., Prodr. [A.P.de Candolle] 10: 325 (1846)
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secundiflorus typicus ined.

Synonyms:
Penstemon secundiflorus caudatus A.Nelson
Penstemon secundiflorus lavendulus Pennell
Penstemon unilateralis Rydb.

nw. & sc. USA, n. Mexico
73 COL WYO 77 NWM, 79 MXE MXN

1500-2900m

secundiflorus versicolor (Pennell) C.C.Freeman, PhytoKeys 80: 37 (2017)

Basionym:
Penstemon versicolor Pennell, Contr. U.S. Natl. Herb. 20: 358 (1920)

Colorado
73 COL

1400-1700m

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