Oxycaryum

Nees in C. F. P. von Martius et al.

in C. F. P. von Martius et al., Fl. Brasil. 2(1): 90. 1842.

Etymology: Greek oxys, sharp, and carya, nut
Treatment appears in FNA Volume 23. Treatment on page 140. Mentioned on page 8.
Revision as of 21:32, 27 May 2020 by imported>Volume Importer

Herbs, perennial, not cespitose, stoloniferous, aquatic. Culms solitary, trigonous. Leaves basal; ligules present, ciliate; blades flat to V-shaped in cross section, prominently keeled on abaxial surface. Inflorescences terminal, umbellate heads or capitate; involucral bracts 1–6+, spreading, leaflike. Spikelets: scales 5–10+, 3-ranked, spirally arranged, each subtending flower. Flowers bisexual; perianth absent; stamens 3; styles 2-fid, linear, base persistent. Achenes plano-convex, margins and apex corky.

Distribution

Tropical and subtropical America and Africa.

Discussion

Species 1.

Lower Taxa