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Penstemon rydbergii

Family: plantaginaceae
Common name(s): Rydbergs Penstemon
Hardiness ratings: USDA zone 4 - 8~10

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup

Links for Penstemon rydbergii

• American Penstemon Society - Detailed description of the species' botanical characteristics, habitat, and native range. (1 photo)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8)
• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (8 photos)
• Las Pilitas Nursery - Catalog page about this California native, with description and horticultural basics. (zone 4-10) (1 photo)
• NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (1 photo)
• Ontario Rock Garden Society - Germination information
• Southwest Colorado Wildflowers - Photos and botanical information about the species/genus. (6 photos)

Penstemon rydbergii var. oreocharis

Links

• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (3 photos)

Penstemon rydbergii var. rydbergii

Links

• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (6 photos)