Coefficient of Conservatism:
Coefficient of Wetness:
An Old World annual of weedy habit, collected on ballast at Detroit, Wayne Co. in 1906. A very distinctive little plant with few-flowered umbels of yellowish flowers, subtended by relatively broad bractlets.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 16, 2017. http://michiganflora.net/species.aspx?id=110.