Rhynchospora megalocarpa A. Gray. Sandhill Beaksedge. Phen: Jun-Aug. Hab: Xeric longleaf pine sandhills, Florida scrub. Dist: Se. NC south to s. FL, west to MS.

ID notes:Rhynchospora megalocarpa is virtually unmistakable, with its broad, coarse leaves, thick stems 9-16 dm tall, large achenes (4-5 mm long), and dry habitat. The many basal leaves look at a distance like some bulrush (Scirpus). It is so much more robust a plant than R. grayi that there should be no confusion; see that species account for distinguishing details.

Origin/Endemic status: Endemic

Synonymy: = FNA23, K1, K3, K4, RAB, WH3, Gale (1944), McMillan (2007); = Rynchospora dodecandra Baldwin ex A.Gray – S, S13

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Heliophily: 8