Date: July 1, 2010. Location: Williams prairie (map)
| Classification Hierarchy | |
| Kingdom | Plantae |
| Clade | Tracheophytes |
| Clade | Angiosperms |
| Clade | Eudicots |
| Clade | Asterids |
| Clade | Gentianales |
| Family | Apocynaceae |
| Subfamily | Asclepiadoideae |
| Tribe | Asclepiadeae |
| Genus | Asclepias |
| Species | Asclepias incarnata |
Date: July 1, 2010. Location: Williams prairie (map)
Scientific Name: Asclepias incarnata
Common Name: Swamp milkweed
Origin: Native; perennial
Notes: found in wet prairies, marshes, and swamps, three to five feet tall, requires full sun and wet or saturated soil.
Additional references: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11.
Flowers: July; petals light pink to dark magenta, crown (5 hoods & horns) often lighter in color than corolla, central column white, multiple inflorescences (umbels) terminate the topmost branches; fruit a follicle, upright and smooth.
Leaves: opposite, lance shaped, up to 6inches long, about 4 times longer than wide, margins continuous.
Glossaries of botanical terms: 1, 2, 3, 4, 5, 6, 7, 8.
