TWO NORTHWARD RANGE EXTENSIONS IN LEELANAU COUNTY, MICHIGAN

摘要

Significance of Report.Significant range extension northward. Previous Knowledge. Collinsonia canadensis is widespread in the eastern United States and Canada, ranging from Florida to Ontario and westward to Missouri, southern Michigan, Illinois, and southeastern Louisiana, though it is absent from much of the southeastern coastal plain. It is presumed extirpated in Wisconsin (SX), possibly extirpated in New Hampshire (SH), and rare in Vermont and Louisiana (S2) (Kartesz 1994, NatureServe 2015). The global conservation status is ranked as secure (G5) though roughly half of the range, including Michigan, has not been reviewed and ranked (NatureServe 2015). It is found in mesic deciduous forests and occasionally in deciduous swamps (Voss and Reznick 2012). Several medicinal uses of this herb have been documented (Hamel et al 1975; Herrick 1977).