Coefficient of Conservatism:
Coefficient of Wetness:
A smaller lilac, originating in cultivation as a fertile hybrid between the European species S. josikaea and the Chinese S. villosa. Apparently aggressively spreading by seed along a gravel road through an alder swamp in Schoolcraft Co. where first collected by D. Henson in 1999.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 22, 2018. http://www.michiganflora.net/species.aspx?id=1740.