Dioscorea polystachya Turcz.
Common Name: CHINESE YAM
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad P-Vine

A species of eastern Asia, occasionally cultivated for the edible tubers and rarely escaping to thickets and disturbed areas. First collected in 2015 in Ottawa Co. by W. S. Martinus.

This rapidly growing vine is very distinctive, producing irregular, brownish aerial tubers at the leaf axils, which are the primary means of dispersal. It can be invasive. 


Ottawa County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 17, 2018. https://www.michiganflora.net/species.aspx?id=2925.