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.

Papaver somniferum L.
Common Name: OPIUM POPPY
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

Papaver somniferum flower A. A. Reznicek flower

A Eurasian species commonly grown in a range of colors and rarely found as a garden weed or on roadsides, dumps, or fields; first collected in 1912 in St. Clair and Wayne Cos.

This plant is the source of poppy seed used in baking and for making a drying oil. The hardened sap of the unripe fruit, on the other hand, is the source of opium and its derivative drugs. The flowers of ornamental plants are often double. Some plants have stiff hairs on the peduncles.


Alpena County
Emmet County
Houghton County
Leelanau County
Lenawee County
Ontonagon County
Schoolcraft County
St. Clair County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 1, 2023.