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Penstemon acaulis

Family: plantaginaceae
Common name(s): Stemless Beardtongue
Hardiness ratings: USDA zone 4

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup
• Dave's Garden. Search the extensive PlantFiles database.

Links for Penstemon acaulis

• American Penstemon Society - Detailed description of the species' botanical characteristics, habitat, and native range. (1 photo)
• Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 4)
• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation.
• NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (2 photos)