Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
A Eurasian species, usually in wet disturbed places in our region. Likely brought from Europe for medicinal uses and first collected in by D. Cooley in 1840 (no locality given, but presumably in Macomb or Oakland Co.). It is still rather local in Michigan but its spread elsewhere suggests that the species will continue to increase.
This rather woolly plant blooms very early in the spring, before development of the long-petioled leaves with broad, ± round-cordate blades. One of the relatively few invasive species that can invade wetlands, it's liking of calcareous seeps and wet calcareous shores make this an upcoming problem for natural wetlands.