Rob's Plant Links
USDA zone 5 - 8
. Online encyclopedia entry (if defined).
. Web search for photographs.
. Taxonomical details, with common names, distribution, and synonyms.
The Plant List
. Taxonomical lookup
. Search the extensive PlantFiles database.
Links for Penstemon calycosus
All Things Plants
- Community-assembled plant profile
American Penstemon Society
- Detailed description of the species' botanical characteristics, habitat, and native range.
Connecticut Botanical Society
- Wildflower profile.
- Informative illustrated page with description and cultivation details, also covering range and faunal associations.
Lady Bird Johnson Wildflower Center
- Plant description and characteristics with notes on distribution, culture, and propagation.
Rare Find Nursery
- Catalog detail page with description and horticultural information. (zone 5-8)
- Wildflower nursery catalog page with description and cultivation details.
02 Jul 2017