Plants and Animals
Carex seorsa Sedge
Densely clumped sedge of deciduous swamps; leaves 2-4 mm; culms lax and spreading; perigynia flattened and strongly reflexed with short, smooth beaks.
Status and Rank
US Status: No Status/Not Listed
State Status: T - Threatened (legally protected)
Global Rank: G5 - Secure
State Rank: S2 - Imperiled
|County||Number of Occurrences||Year Last Observed|
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.
Found on hummocks in hardwood or hardwood-conifer swamps, margins of bogs, and buttonbush depressions. Often found at edges of woodland pools or at the swamp-upland border.
Natural Community Types
- Floodplain forest
- Hardwood-conifer swamp
- Inundated shrub swamp
- Southern hardwood swamp
- Southern shrub-carr
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.
Red maple, Michigan holly, buttonbush, bracken fern, Canada mayflower, cinnamon fern, and sedges (Carex canescens, C. trisperma).
Maintain hydrological regime and forest canopy. This species may be impacted by excessive timber harvesting and other artificial disturbances.
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.
Survey Period: From first week of June to fourth week of June
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