Monographs Details:
Authority:

Mori, S. A., et al. 1997. Guide to the vascular plants of central French Guiana: Part 1. Pteridophytes, gymnosperms, and monocotyledons. Mem. New York Bot. Gard. 76: 1-422.
Family:

Cyperaceae
Description:

Species Description - Caespitose perennials; culms erect, 6-50 cm tall. Leaves basal or from near base of culm; largest leaves with sheath 1-13 cm long, pinkish to maroon; blade 14-57 X 0.1-1 cm, green adaxially and abaxially. Inflorescences cymose panicles of 2-5 open cymes of congested, capitulate cymes, each open cyme subtended by a leaf-like bract, the lowest bract with a sheath to 6 cm long and a blade 10-50 X 0.1-0.7 cm, the open cymes each with a terminal, sessile capitulum and 2-8 lateral capitula on pedicels 1-17 mm long, the fruiting capitulum spherical to obloid, 1.5-3 X 2-4 mm, comprising 5-10 spikelets; spikelet scales 0.9-1.7 X 0.8-1 mm, greenish to brownish. Fruits broadly ovoid, somewhat compressed, 1.2- 2.1 X 1-1.9 mm, pale brown to bony-white, usually puberulent, the base truncate and often slightly ridged, the apex rounded and often with an apiculus 0.1 mm long. Fr (year round); forests, forest edges, or clearings. Calyptrocarya glomerulata is a highly variable species that may deserve separation into two or more taxa. The Saul specimens can be separated into two distinct groups using the following criteria: fertile culms 6-18 cm long, widest leaves.