Home Ranunculaceae Clematis

Clematis occidentalis (Hornem.) DC.

Common Name: PURPLE CLEMATIS
Coefficient of Conservatism: 9
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt W-Vine

Rocky forests and thickets, on stream banks, and in burned or cleared areas. A handsome, very local, large-flowered plant.

This normally occurs in a much drier, upland habitat than our other, much more common native species, Clematis virginiana. The leaflets range from being essentially entire to being variously toothed, though rarely are they so regularly toothed as those of C. virginiana. Vegetative individuals of this species with ± regularly toothed leaves can be distinguished from C. virginiana because the teeth lack the ± abrupt and often bent apiculus typical of teeth (especially the upper ones) in C. virginiana.

R. Sprague

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Counties
Baraga
Dickinson
Gogebic
Houghton
Iron
Keweenaw
Marquette
Ontonagon
Schoolcraft

Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 28, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/2367