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Family: plantaginaceae
Common name(s): Whipple's penstemon
Hardiness ratings: USDA zone 4 - 8 
General resources
Links for Penstemon whippleanus
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8)
 (2 photos)
- Garden.org - Community-assembled plant profile (2 varieties in database) (4 photos)
- Iris' Garden - Gardener in the Netherlands presents a photo of this plant, with basic horticultural information. (1 photo)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (9 photos)
- NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (1 photo)
- Ontario Rock Garden Society - Germination information (use search on page to find this taxon)
- Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (1 photo)
- Southwest Colorado Wildflowers - Photos and botanical information about the species/genus. (10 photos)
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