Aconitum napellus L.
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad P-Forb

Aconitum napellus R. W. Smith

A thriving colony of this European garden escape grows in the swampy interior of Passage Island, Isle Royale National Park (Keweenaw Co.), where it was first seen in 1983, and has been collected over a number of years.

Aconitums are readily recognized by their conspicuous hood or helmet, but the alliance of species associated with A. napellus is complex taxonomically in its native Europe, and this name is here applied tentatively. This is a highly poisonous plant if eaten.


Keweenaw County
    Only on Isle Royale


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 7, 2022.