Rumex conglomeratus Murray
Coefficient of Conservatism: *
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Ad P-Forb

Wet open areas; a native of Eurasia sparingly introduced into North America.

This non-native wetland Rumex was first collected in 2018 by R. G. Schipper in Allegan Co., and is a quite distinct plant, with a lax, interrupted, quite leafy, paniculate inflorescence. It also differs from all our other wetland Rumex in the narrow tepals, leaving the nutlet largely visible, in this respect similar only to R. sanguineus, another alien, known from Ontario, but not yet Michigan.  Rumex sanguineus can be distinguished by having only having only the lowest inflorescence branches with leafy bracts and only one of the inner tepals with a swollen tubercle (“grain”) rather than all three, as in R. conglomeratus.


Allegan County


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