Asclepias verticillata L.
Coefficient of Conservatism: 1
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Asclepias verticillata flowers A. A. Reznicek flowers

Dry sandy or gravelly places, including prairies, oak savanna, roadsides, and fields; very recently becoming abundant along major highways.

A distinctive slender plant, the leaves numerous and nearly filiform (often revolute) and the flowers white to greenish (sometimes purple tinged) in umbels near the top of the plant. This is now a characteristic species along dry, sunny roadsides in many areas. Most northern records are relatively recent, the plant evidently moving northwards.


Allegan County
Benzie County
Berrien County
Branch County
Cass County
Charlevoix County
Clinton County
Hillsdale County
Iosco County
Jackson County
Kalamazoo County
Kent County
Lapeer County
Leelanau County
    Including Manitou Islands
Lenawee County
Livingston County
Macomb County
Mecosta County
Menominee County
Monroe County
Muskegon County
Newaygo County
Oakland County
Oscoda County
Ottawa County
Schoolcraft County
St. Joseph County
Van Buren County
Washtenaw County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. May 29, 2022.