Asclepias viridiflora - (image 1 of 4)
Taxonomy
Family: Asclepiadaceae
Habitat
Dry upland woods, prairies, barrens, and dunes.
Associates
Distribution
Southern NY and CT west to MI and Manitoba, south to GA, AZ, and northern Mexico. More common to the west.
Morphology
Perennial herb, often with a leaning habit; stems 30-80 cm long, thinly hairy. Leaves opposite, petiolate. Umbels two to several from the leaf axils; flowers pale green, inconspicuous; hoods of the corona without horns.
Notes
Flowers June to August
Wetland Indicator: Upland
Not a very showy milkweed but still an important food plant for monarch butterflies. Most often found on sandy soils.
References
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
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© Michael Hough 2004 |