Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.

Perilla frutescens (L.) Britton
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

 A native of southeast Asia, sometimes cultivated as an herb for its oily seeds, edible leaves, or bronze foliage, and locally escaped as a weed in eastern North America. First collected in 1994 (A. A. Reznicek 9976, MICH) along a sidewalk in Ann Arbor (Washtenaw Co.). See also comments under Collinsonia.

Purple leaved plants are commonly grown, and the Lenawee Co. collection is this color. 


Lenawee County
Washtenaw County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 28, 2023.