Carex trichocarpa
Hairy-fruited sedge
Image of Carex trichocarpa

Photo by Ryan P. O'Connor 

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Key Characteristics

Clumped sedge of riparian wetlands; leaves 3-9 mm with reddish bases; perigynia pubescent and relatively large (7-9 mm long) with prominent beaks.

Status and Rank

  • State Status: SC
  • State Rank: S2
  • Global Rank: G4

Occurrences

County NameNumber of OccurrencesYear Last Observed
Berrien11981
Ingham21947
Kent41939
Lenawee72001
St. Joseph11902
Washtenaw32004
Wayne12015
Distribution map for Carex trichocarpa

Updated 1/31/2017. Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.

Habitat

Occurs on the margins of floodplain forests and in open wetlands along streams and marsh borders.

Natural Community Types

Methodology

For each species, lists of natural communities were derived from review of the nearly 6,500 element occurrences in the MNFI database, in addition to herbarium label data for some taxa. In most cases, at least one specimen record exists for each listed natural community. For certain taxa, especially poorly collected or extirpated species of prairie and savanna habitats, natural community lists were derived from inferences from collection sites and habitat preferences in immediately adjacent states (particularly Indiana and Illinois). Natural communities are not listed for those species documented only from altered or ruderal habitats in Michigan, especially for taxa that occur in a variety of habitats outside of the state.

Natural communities are not listed in order of frequency of occurrence, but are rather derived from the full set of natural communities, organized by Ecological Group. In many cases, the general habitat descriptions should provide greater clarity and direction to the surveyor. In future versions of the Rare Species Explorer, we hope to incorporate natural community fidelity ranks for each taxon.

Feel free to send questions and comments to Brad Slaughter at slaugh14@msu.edu.

Associated Plants

Strict sedge, bluejoint grass, Joe-pye weed, boneset, pussy willow, and lake sedge.

Management

This species appears to require openings on edges of southern floodplains; maintain natural disturbance regime.

General Survey Guidelines

Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.

Survey Methods

Page Citation

Michigan Natural Features Inventory. 2007. Rare Species Explorer (Web Application). Available online at http://mnfi.anr.msu.edu/explorer [Accessed Mar 30, 2017]

References

Survey References

Technical References