Rhynchospora mixta Britton. Common name: Mingled Beaksedge. Phenology: Jun-Aug. Habitat: Swamp forests, marshes. Distribution: Ne. NC south to c. peninsular FL and west to e. TX.

ID notes: The inflorescence branches of R. mixta and (less commonly) R. caduca can spread at right angles from the culm, superficially resembling R. miliacea. The three can be separated by tubercle length: the tubercle of R. miliacea is 0.2-0.4 mm long, while those of R. mixta and R. caduca are 0.4-0.9 mm long.

Origin/Endemic status: Endemic

Synonymy ⓘ: = ETx1, FNA23, GW1, K4, NS, POWO, RAB, Tx, WH3, Bridges & Orzell (2023) in Weakley et al (2023), Gale (1944), McMillan (2007); > Rynchospora mixta — S, S13; > Rynchospora prolifera Small — S, S13. Basionym: Rhynchospora mixta Britton 1903

Links to other floras: = Rhynchospora mixta - FNA23

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: OBL
• Eastern Mountains and Piedmont: OBL
• Great Plains: OBL

Heliophily ⓘ: 7