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Some authorities call this plant A. campestris ssp. caudata.
Sandy soil near Lake Michigan. In sandy oak savanna. Gravelly hill prairies.
This species is found in coastal regions including the Great Lakes and irregularly inland throughout much of the US.
Low mounding, taprooted biennial or perennial, greatly increasing in height when it flowers. Primary leaves pinnately divided or compound, ultimate leaf divisions entire. Disk flowers sterile.
Flowers early August to late October
Wetland indicator: Upland
An attractive little plant before it goes to flower, often with silvery pubescent foliage. The plants will persist from year to year if the flowers are removed early. Host to the rare parasitic plant Orobanche fasciculata (clustered broomrape).
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.
Michael Hough © 2004