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Rhynchospora caduca Elliott. Angle-stem Beaksedge. Phen: Apr-Sep. Hab: Tidal swamps, pine savannas and flatwoods, hardwood swamps, interdune ponds, acidic meadows and seeps, other wet areas. Dist: E. and c. VA south to s. FL and west to TX, OK, and AR, north in the interior to sc. TN. This species is found at a few sites in the mountains of GA.

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: = Ar, C, ETx1, F, FNA23, G, GW1, K1, K3, K4, RAB, Tn, Tx, Va, W, WH3, Bridges & Orzell (2023) in Weakley et al (2023), Gale (1944), McMillan (2007); > Rynchospora caduca – S, S13; > Rynchospora patula A.Gray – S, S13

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Wetland Indicator Status:

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

Heliophily ?: 8

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image of plant© Scott Ward | Original Image ⭷
image of plant© Melanie Flood | Original Image ⭷
image of plant© Bruce Sorrie | Original Image ⭷
image of plant© Alex de la Paz | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Bruce Sorrie | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Radford, Ahles and Bell | Original Image ⭷
image of plant© Godfrey and Wooten 1979 | Original Image ⭷
image of plant© Patrick McMillan | Original Image ⭷
image of plant© Patrick McMillan | Original Image ⭷

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