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Orobanche fasciculata Nutt.
Common Name: CLUSTERED BROOM RAPE
Coefficient of Conservatism: 10
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb
Status: T
Orobanche fasciculata M. R. Penskar

Sand dunes along the Lake Michigan shore. There is a strange gap in the distribution between western Michigan and the dunes of Indiana and Illinois. The range is otherwise to the west, as far as the Pacific but for an isolated station on Manitoulin Island. The only documented host in Michigan appears to be Artemisia campestris on sand dunes, although other hosts have been reported elsewhere.

The flowers are similar to those of O. uniflora, with which this is sometimes confused. O. uniflora has an erect, buried stem, which should not be mistaken for the above ground stem of O. fasciculata when keying specimens.

Locations

Benzie County
Charlevoix County
    Only on Beaver Island
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Manistee County
Mason County
Oceana County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 30, 2023. https://michiganflora.net/species.aspx?id=1868.