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Family: apocynaceae
Common name(s): White Swamp Milkweed
Hardiness ratings: USDA zone 6~6b - 9 
General resources
Links for Asclepias perennis
- Alabama Plants - Description and photographs of botanical features, with notes about habitat and native status.
 (6 photos)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 6-9) (4 photos)
- Garden.org - Community-assembled plant profile (1 photo)
- Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations. (4 photos)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (44 photos)
- Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (11 photos)
- Native Plant Society of Texas - Plant profile with basic characteristics, some horticultural information, and a distribution map within Texas. (2 photos)
- Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (zone 6b-9) (1 photo)
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