Regularity: Regularly occurring
Global Range: Occurs primarily in coastal counties. Eriochloa michauxii occurs from southernmost South Carolina (Beaufort County only) through coastal Georgia (Liberty, McIntosh, Glynn, Charlton Counties), and in Florida from Franklin and Duval Counties south to Dade and Monroe Counties. The var. simpsonii occurs only in Dade, Collier, Lee, and Monroe Counties, Florida.
"Panicle open, with a single central axis from which diverge at rather remote intervals 3-20 narrow racemelike lateral panicles, the lower commonly about 10 cm long, gradually diminishing in length upward" (Godfrey and Wooten, 1979).
Catalog Number: US 81936
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): A. H. Curtiss
Year Collected: 1882
Locality: Key West, Florida Keys, Florida, United States, North America
- Isotype: Vasey, G. 1886. Bull. Torrey Bot. Club. 13: 25.
Comments: Brackish and fresh tidal marshes, marshes on islands, wet openings in maritime forests, interdune swales, sand- shell beaches, wet pine-palmetto-hardwood hammocks, wet pine flatwoods. In all these habitats, Eriochloa michauxii prefers full sunlight or light gaps.
Life History and Behavior
National NatureServe Conservation Status
Rounded National Status Rank: N3 - Vulnerable
NatureServe Conservation Status
Rounded Global Status Rank: G3 - Vulnerable
Reasons: Relatively sizeable overall range, but mostly confined to coastal counties. Not distributed evenly throughout range--spotty. Definite threats, but acting over long-term. Many protected sites. Not tracked in state with most populations (Florida). Rare at northern periphery of range.
Global Short Term Trend: Decline of 10-30%
Comments: Loss of habitat is a long-term trend.
Comments: Seaside development, marsh draining, altered hydrology, suburban sprawl.
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