Carex straminea
Straw sedge
Image of Carex straminea

Photo by Emmet J. Judziewicz 

Key Characteristics

Densely clumped Ovales sedge of marshes and swamp borders; leaves 2-4 mm; spikelets with distinctive staminate bases; perigynia strongly flattened with prominent wings, relatively wide (>2 mm); scales with sharp awn-like tips.

Status and Rank

  • State Status: E
  • State Rank: SH
  • Global Rank: G5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Kalamazoo41942
Distribution map for Carex straminea

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

Few collection data; recorded as occurring in low ground, marshes, and swamps.

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

No data are available concerning associates in Michigan.

Management

Little is known about this species. The primary need at present is a status assessment and compilation of better habitat data.

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