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Photo © R.C. Moran
Clustered Broomrape (Orobanche fasciculata), a Wisconsin Threatened plant, is found in dry prairies and dunes (both near Lake Michigan and inland). Blooming occurs throughout June; fruiting occurs throughout July. The optimal identification period for this species is throughout June.
Synonyms: Anoplanthus fasciculatus, Phelypaea lutea, Thalesia fasciculata, Thalesia lutea, Orobanche fasciculata var. franciscana, Orobanche fasciculata var. lutea
The table below provides information about the protected status - state and federal - and the rank (S and G Ranks) for Clustered Broomrape (Orobanche fasciculata). See the Working List Key for more information about abbreviations. Counties shaded blue have documented occurrences for this species in the Wisconsin Natural Heritage Inventory database. The map is provided as a general reference of where this species has been found to date and is not meant as a range map.
| Summary Information | |
|---|---|
| State Status | THR |
| Federal Status in Wisconsin | none |
| State Rank | S1 |
| Global Rank | G4G5 |
| Tracked by NHI | Y |
The Natural Heritage Inventory has developed scores indicating the degree to which each of Wisconsin's rare plant species is associated with a particular natural community or ecological landscape. This information is similar to that found in the Wildlife Action Plan for animals. As this is a work in progress, we welcome your suggestions and feedback.
This table lists the natural communities that are associated with Clustered Broomrape. Scores for natural community associations are: "significant" association (score=3), "moderate association" (score=2) or the species can be present but is only weakly associated with the community (score=1).
| Natural communities | score |
|---|---|
| Great Lakes Dune | 3 |
| Dry Prairie | 2 |
| Sand Prairie | 2 |
This table lists the ecological landscape association scores for Clustered Broomrape. The scores (3=High, 2=Moderate, 1=Low, 0=None) also correspond to the map.
| Ecological landscape | score |
|---|---|
| Central Lake Michigan Coastal | 3 |
| Southeast Glacial Plains | 1 |
| Southern Lake Michigan Coastal | 1 |
| Western Coulee and Ridges | 2 |
The Endangered Resources Program has developed avoidance measures and management guidelines for plants on the Natural Heritage Working List. These are a work in progress, and we welcome your suggestions and feedback. Sources used in developing this information can be found here.
These are specific actions designed to avoid "take" (mortality) of this species.
Management guidelines are additional considerations that may help maintain or enhance habitat for this species
Click to view a larger version. Please considering donating a photo to the Natural Heritage Conservation Program for educational uses. Photo use
Clustered broomrape is a root parasite and habitat specialist in dunes along Lake Michigan.
Photo © R.C. Moran.
Photo by staff, Wisconsin DNR.
Photo © Robert H. Read.
Photo © John van der Linden.
Support for Wisconsin's rare plant information has been provided by the Division of Forestry, the Endangered Resources Fund and the Wisconsin Rare Plant Preservation Fund. To donate, visit the Natural Resources Foundation of Wisconsin [exit DNR].