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Amsonia rigida

Family: apocynaceae
Common name(s): stiff blue star
Hardiness ratings: USDA zone 6 - 9

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup
• Dave's Garden. Search the extensive PlantFiles database.

Links for Amsonia rigida

• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (5 photos)
• Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (zone 6-9) (1 photo). Also a page for 'Black's Dwarf'.
• Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (3 photos)