Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
A native of the Andes, collected once at Detroit (Wayne Co.) in 1912, presumably as a garden escape. Another (1932) Detroit collection is apparently A. caudatus × A. cruentus, and one from the shores of Torch Lake, Houghton Co. (in 1940), is possibly A. caudatus × A. retroflexus. Both are apparently sterile hybrids.
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=51.