Rhynchospora plumosa Elliott. Common name: Plumed Beaksedge. Phenology: May-Aug. Habitat: Pine savannas, sandhill-pocosin ecotones, especially where the sandy surface dries out in summer (on spodosols such as the Leon soil series). Distribution: NC south to s. FL and west to se. TX; West Indies (Cuba); Belize, Honduras, Nicaragua.
ID notes: Rhynchospora plumosa is a short plant, up to 4.5 dm tall, and with very narrow, filiform leaves. A look at a seed narrows down the ID choices to just a few species of Rhynchospora with feathery seed bristles; see Rhynchospora Key C. In this species the spikelets form dense clusters (cylindrical in outline), versus an open inflorescence composed of a few slender branches in R. oligantha and R. galeana.
Origin/Endemic status: Native
Synonymy ⓘ: = NS, POWO, Naczi, Knapp, & Thomas (2012); < Rhynchospora plumosa Elliott — Ar, ETx1, FNA23, GW1, K4, RAB, Tx, WH3, Bridges & Orzell (2000), McMillan (2007); > Rynchospora plumosa — S, S13; > Rynchospora semiplumosa A.Gray — S, (as to type); Rhynchospora plumosa Elliott — (basionym)
Links to other floras: < Rhynchospora plumosa - FNA23
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW (taxonomic split from wetland indicator species)
- Great Plains: FACW (taxonomic split from wetland indicator species)
Heliophily ⓘ: 8
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