|Purple spike rush|
Photo by Susan R. Crispin
Very small annual spike-rush (5-10 cm) of coastal plain marshes; stems clumped without rhizomes; achenes very small and black, somewhat flattened, topped by a tiny white cap; bristles arising from base of achene white, very short.
Status and Rank
- State Status: E - Endangered (legally protected)
- State Rank: S1 - Critically imperiled
- Global Rank: G4G5 - Rank is uncertain, ranging from apparently secure to secure
|County Name||Number of Occurrences||Year Last Observed|
Updated 05/08/2013. 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.
Known from the edges of coastal plain marshes on moist, peaty sand exposed by receding shores.
Natural Community Types
Bluejoint grass, pondweed, buttonbush, Smith's bulrush, and Hall's bulrush.
This species requires conservation of habitat and protection of the hydrology, including maintenance of cyclical drawdown regime and water table. Maintain moist, open habitat. It is also vulnerable to ORV impacts and dredging and filling activities.
General Survey Guidelines
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.
- Meander search
Survey Period: From first week of July to fourth week of August
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