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Moist prairies. Wet, calcareous meadows. Occasional in drier prairies.
MD to southern WI, south to SC, GA, AL, and AK. This variety is found primarily in the Midwest.
Herbaceous perennial. Leaves opposite, linear to linear-lanceolate, more than 5 times longer than broad, glabrous. Flowers pale pink or lavender, in broad corymbose inflorescences about as broad as long. Stems erect, glabrous.
Flowers mid June to early September.
Wetland indicator: Facultative Wetland -
A very attractive species, especially blooming in combination with Pycnanthemum virginianum and Spiraea alba.
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.
USDA, NRCS. 2002. The PLANTS Database, Version 3.5 (http://plants.usda.gov).
National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Michael Hough © 2005