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Penstemon speciosus

Family: plantaginaceae
Common name(s): Royal Penstemon
Hardiness ratings: USDA zone 3~5 - 7~10

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 speciosus

• All Things Plants - Community-assembled plant profile (2 photos)
• 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 3-7) (2 photos)
• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation.
• Las Pilitas Nursery - Catalog page about this California native, with description and horticultural basics. (zone 5-10) (4 photos)
• Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.

Penstemon speciosus subsp. kennedyi

Links

• NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (1 photo)