Log In
New Account
Sitemap
Home
Specimen Search
Search Collections
Map Search
Exsiccati Search
Images
Image Library
Search Images
Inventories
State Floras
Kentucky Flora
Dynamic Tools
Dynamic Checklist
Dynamic Key
Cyperus distans
L. f.
Family:
Cyperaceae
Mexican Flat Sedge
[
Cyperus squamulatus
Steud.,
more
Mariscus longibracteatus
Cherm.
]
FNA
Resources
Gordon C. Tucker*, Brian G. Marcks* & J. Richard Carter * in Flora of North America (vol. 23)
Herbs, perennial, rhizomatous. Culms single or close together, trigonous, (10-)40-80(-120) cm × 1.2-2.5(-5) mm, glabrous. Leaves 2-5, pleated, (10-)20-50(-90) cm × 2-5(-10) mm. Inflorescences: spikes 1-4(-7), loose, broadly ovoid to ovoid-pyramidal, 25-35 × 25-35 mm; rays (4-)5-6(-8), (1-)3-8(-16) cm, glabrous; 2d order rays (0-)1-5, 5-15(-50) mm; bracts 4-7, ascending at 30-45°, pleated, (5-)20-40(-60) × (2-)3-8(-11) mm; 2d order bracts 1-4 per ray, 5-10(-30) × 0.5-1 mm, scabridulous; rachilla persistent, wingless (or very narrowly winged, not clasping achene). Spikelets (10-)20-35(-45), seemingly flattened proximally from spreading floral scales, becoming terete apically, linear, (10-)13-18(-25) × 1.2-1.5(-1.6) mm; floral scales deciduous, (10-)12-20(-25), laterally light reddish brown to dark red, medially greenish, laterally ribless, medially 3-5-ribbed, oblong-ovate, 1.7-2(-2.4) × 0.9-1.2 mm, apex obtuse, barely reaching next scale, apex entire, emarginate, mucro at most 0.3 mm. Flowers: anthers 0.4-0.5 mm; styles 0.3-0.6 mm; stigmas 1-1.8(-2) mm. Achenes dark brown, narrowly oblong, (1.3-)1.4-1.6(-1.7) × (0.3-)0.4-0.5 mm, base cuneate to ± stipelike, apex acute, not apiculate, surfaces papillose.
Fruiting summer. Marshes; 0 m; Fla., N.C.; Mexico; West Indies (Dominican Republic south through the Lesser Antilles); South America; Asia; Africa.
Open Interactive Map
University of Florida Herbarium
Click to Display
100 Initial Images
- - - - -
View All Images
This project made possible by
National Science Foundation Award 1410069
Powered by
Symbiota
.