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Polygonum douglasii Greene

Common Name: WESTERN SMARTWEED
Coefficient of Conservatism: 5
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt A-Forb

Sandy soil of open places (sometimes with Polygonum articulatum) in the west-central Lower Peninsula and counties bordering Lake Michigan in the Upper Peninsula, but on dry rock outcrops and "mountains" in the northwestern Upper Peninsula and Isle Royale; ± disjunct from western North America.

R. Schipper

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Counties
Alger
Allegan
Benzie
Crawford
Delta
Gogebic
Grand Traverse
Houghton
Keweenaw
Leelanau
Marquette
Mecosta
Muskegon
Newaygo
Ontonagon
Schoolcraft

Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 17, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/2296