Common Name: GIANT KNOTWEED
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad P-Forb
Polygonum sachalinense of Michigan Flora.
A native of eastern Asia, rarely escaped from cultivation to such sites as railroads, roadsides, and old homesites. First collected in 1958 in Houghton and Jackson Cos.
See notes under Fallopia japonica for hybrids.
R. Gamble
Click image to view gallery
| Baraga |
| Benzie |
| Charlevoix |
| Cheboygan |
| Emmet |
| Houghton |
| Jackson |
| Washtenaw |
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/2277