356 CYPERACEAE. 
192. Carex tribuloides Wahl. Blunt Broom Sedge. (Fig. 862.) 
Carex tevignaes Wahl. Kongl. Vet. Acad. Handl. (II.) 24. 
Cares lagopodioides Schk. Riedgr. Nachtr. 20. f. 177. 1806. 
C. tribuloides var. turbata Bailey, Mem.Torr. Club, 1:55. 1880. 
Bright green, culms usually stout, erect, roughish 
above, 8/-3° tall. Leaves flat, 1//-3/’ wide, shorter 
than or the uppermost overtopping the culm; lower 
bract bristleform, sometimes elongated; spikes 6-20, ob- 
long or sometimes top-shaped, blunt, densely clustered or 
sometimes separated, 3//-6/ long, about 2%’’ thick; 
staminate flowers basal; perigynia lanceolate, thin, 
greenish brown, flat, ascending or erect, 2’/-2%4’’ long, 
4//-1’’ wide, several-nerved on each face, with a sharply 
2-toothed, rough wing-margined beak; scales lanceolate, 
whitish, acute, about half as long the perigynia; stigmas 2. 
In meadows, New Brunswick to Manitoba, Florida and 
Arizona. Ascends to 2500 ft. in Virginia. July—Sept. 
, Carex tribuloides Bébbii Bailey, Mem. Torr. Club. 1:55. 1889. 
More slender, spikes fewer, smaller (about 3'’ long, commonly bractless, mostly clustered in a 
dense head 1’ long; perigynia broader and shorter. Range of the type. 
Carex tribuloides moniliformis (Tuckerm.) Britton. 
Carex scoparia var. moniliformis Tuckerm. Enum, Meth. 17. 1543. 
Carex tribuloides var. reducta Bailey, Proc. Am. Acad. 22: 118. 1886. 
Slender, the culm much exceeding the leaves; spikes all or all but the uppermost separated, 
2'4''-4'' long, the rachis somewhat zigzag. Maine and New Brunswick to New York, west to North 
Dakota. 
193. Carex scoparia Schk. Pointed Broom 
Sedge. (Fig. 863.) 
Carex scoparia Schk. Riedgr. Nachtr. 20. 7. 175. 1806. 
Carex scoparia var, minor Boott, Ill. 116. fl. 369. 1862. 
Culms slender, erect, roughish above, 14°-2'%° tall. 
Leaves less than 114’’ wide; lower bract bristle-form or 
wanting; spikes 3-10, oblong, narrowed at both ends, 
bright brown, 3/’-8’’ long, 2’’-3’’ in diameter, densely 
many-flowered, usually aggregated into an ovoid head 
8/’-18” long; staminate flowers basal; perigynia lanceo- 
late, ascending or erect, 2’’/-3’’ long, rather less than 1/’ 
wide, narrowly wing-margined, several-nerved on both 
faces, tapering into the ciliate 2-toothed beak; scales 
thin, brown, acuminate or cuspidate, shorter than the 
perigynia; stigmas 2. 
In moist soil, Nova Scotia to Manitoba, Florida and Col- 
orado. Ascends to 6200 ft. in North Carolina. July-Sept. 
194. Carex leporina L. Hare’s-foot Sedge. 
(Fig. 864.) 
Carex leporina I,. Sp. Pl. 973. —_1753- 
Culms slender, erect, roughish above, 1°-113° tall. 
Leaves about 1’’ wide, flat, shorter than the culm; 
bracts very short and scale-like or wanting; spikes 
4-7, oblong, blunt at the summit, narrowed and stam- 
inate at the base, 4’’-6’’ long, about 3’ thick, dark 
brown, shining, clustered but distinct, in a terminal 
oblong head about 1’ long; perigynia ascending or ap- 
pressed, ovate-lanceolate, 2’’ long, nearly 1/’ wide, 
rather narrowly wing-margined, several-neryed on 
both faces, the rough tapering 2-toothed beak nearly 
as long as the body; scales lanceolate, brown, mem- 
branous, acute, narrower and shorter than the peri- 
gynia; stigmas 2. 
Eastern Massachusetts. Adventive from Europe. Na- 
tive in the Rocky Mountains. June-Aug. 
