SEDGE FAMILY. 237 
5. Cyperus microdontus Torr. Coast Cyperus. (Fig. 547.) 
‘~S 
Cyperus microdontus Torr. Ann. Lyc. N. ¥. 3: 255. 
1836. 
Annual, similar to the preceding species, culms 
very slender, tufted, sometimes 20’ high, usually 
lower. Leaves about 1’ wide, those of the invo- 
lucre much elongated; umbel commonly simple, 
sessile, capitate, or 1-6-rayed; spikelets linear, 
acute, 3/’-9’’ long, less than 1’ wide, yellowish- 
brown; scales ovate, acute, thin, appressed when 
young, spreading at maturity; stamens 2; style 2- 
cleft, its branches much exserted; achene lenticular, 
linear-oblong, short-pointed, light brown, one-half 
as long as the scale, its superficial cells quadrate. 
In wet soil, on or near the coast, Virginia to 
Florida and Texas. Aug.—Oct. 
6. Cyperus flavicomus Michx. Elegant Cyperus. (Fig. 548.) 
Cyperus flavicomus Michx. Fl. Bor. Am. 1: 27. 1803. 
Annual, culms stout or slender, 1°—3° tall, leafy 
below. Leaves smooth, or rough-margined, 2//—3/’ 
wide, those of the involucre 3-8, the longer ones 
| much exceeding the inflorescence; umbels few— 
several-rayed, often compound; primary rays '%4/— 
| 214’ long; spikelets numerous, usually densely clus- 
| tered, linear, acute, 4/’-10’’ long, 1/’-11%4’’ wide, 
| flat, many-flowered, spreading; scales oblong, ob- 
| tuse, thin, dull, yellowish-brown, scarious-mar- 
gined, faintly 3-nerved; stamens 3; style 2-cleft, 
> little exserted; achenes obovate, lenticular, black, 
| \ mucronate, not shining, nearly as long as the 
| scales and often persistent on the rachis after these 
} have fallen away. 
\\ 
NIN In wet or moist sandy soil, Virginia to Florida and 
NN Louisiana. Aug.—Oct. 
7. Cyperus infléxus Muhl. Awned Cyperus. (Fig. 549.) 
Cyperus inflexus Muhl. Gram. 16. 1817. 
Cyperus aristatus Boeckl. Linnaea, 35: 500, in part. 1868. 
Not Rottb. 1773. 
Annual, culms slender or almost filiform, tufted, 1/— 
6/ tall, about equalled by the leaves. Leaves 1/’ wide 
or less, those of the involucre 2-3, exceeding the umbel; 
umbel sessile, capitate, or 1-3-rayed; spikelets linear- 
oblong, 6-10-flowered, 2’’-3/’ long; scales light brown, 
lanceolate, rather firm, strongly several-nerved, taper- 
ing into a long, recurved awn, falling from the rachis 
at maturity; stamen 1; style 3-cleft; rachis narrowly 
winged, the wings persistent; achene 3-angled, brown, 
dull, narrowly obovoid or oblong, obtuse, mucronulate. 
In wet, sandy soil, Vermont to the Northwest Territory 
and Oregon, south to Florida, Texas, California and 
Mexico. Fragrantin drying. July-Sept. 
