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Penstemon triphyllus

Family: plantaginaceae
Common name(s): whorled penstemon

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• GRIN. Taxonomical details, with common names, distribution, and synonyms.
• The Plant List. Taxonomical lookup
• Dave's Garden. Search the extensive PlantFiles database.

Links for Penstemon triphyllus

• American Penstemon Society - Detailed description of the species' botanical characteristics, habitat, and native range. (1 photo)
• Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records.