Plants and Animals
Carex davisii Davis's sedge
Densely clumped sedge of floodplain forests; sheaths dark red, leaves pubescent; pistillate spikelets drooping on long peduncles; pistillate scales with long awn.
Status and Rank
State Status: SC - Special Concern (rare or uncertain; not legally protected)
Global Rank: G4 - Apparently secure
State Rank: S3 - Vulnerable
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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.
Occurs primarily in first and second bottoms of floodplain forests in southern Lower Michigan, especially in canopy gaps and artificial clearings including riparian thickets and fields.
Natural Community Types
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.
Silver maple, red ash, cottonwood, sycamore, spicebush, southern blue flag, bladdernut, wood nettle, false nettle, creamy white violet, James' sedge, American beak-grass, wahoo, pawpaw, blue-beech, green dragon, poison ivy, and bushy aster.
Conserve hydrology of river system and corresponding cyclical floodplain regime. Maintain healthy intact, mature floodplain forests and minimize forest fragmentation. When possible, leave large tracts of unharvested forests and allow natural processes to operate unhindered.
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.
Survey Period: From fourth week of May to second week of July
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