Germination Ecology of a Federally Threatened Endemic Thistle, Cirsium Pitcheri, of the Great Lakes
Hamzé SI and Jolls CL. 2000. Germination Ecology of a Federally Threatened Endemic Thistle, Cirsium Pitcheri, of the Great Lakes. The American Midland Naturalist. 143(1):141-153
Pitcher's thistle (Cirsium pitcheri) is a federally listed monocarpic plant species endemic to the shoreline dunes of Lakes Huron, Michigan, and Superior. Pitcher's thistle seed heads were collected by permit during the first 2 weeks of August 1996 from each of three sites: Sturgeon Bay and Waugoshance Point in Wilderness State Park in Michigan's Lower Peninsula and Pictured Rocks National Lakeshore in the Upper Peninsula. Seed mass and depth of burial on seed and seedling success from laboratory experiments in controlled growth environments and conditions necessary to overcome seed dormancy and the effects of light are reported.
- Type
- Journal Article
- Authors
- Hamzé, Samara; Jolls, Claudia
- Units
- PIRO
- Keywords
- Germination, Pitcher's Thistle (Cirsium pitcheri), Seeds, Threatened & Endangered Species