This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol1", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
C. granularis recta Dewey; Wood's Class-book 763. 1860.
Glabrous, light green and slightly glaucous, culms slender, erect or ascending, smooth or nearly so, 6'-2 1/2" tall. Leaves flat, roughish, 1 1/2"-4 1/2" wide, the basal shorter than the culm; bracts similar to the culm-leaves, usually much exceeding the spikes, strongly sheathing; staminate spike solitary, sessile or short-stalked; pistillate spikes 2-5, distant or the upper two contiguous, erect or slightly spreading, narrowly oblong or cylin-dric, 1/2'-l 1/4' long, 2 1/2 thick, densely 10-50-flowered, the lower at least exsert-peduncled; perigynia ovoid to obovoid, somewhat swollen and suborbicular in cross-section, strongly many-nerved, ascending, slightly more than 1" long, 3/4"-1" wide, contracted into a short, usually entire, bent, or nearly straight beak; scales narrowly ovate, thin, acuminate or cuspidate, shorter than the perigynia; stigmas 3.
In moist meadows, New Brunswick to Manitoba, south to Florida and Louisiana. May-July.
Glabrous, culms low, stiff, smooth or nearly so, erect, 3'-15' tall, from long creeping rootstocks. Leaves rather stiff, i"-2" wide, erect or nearly so, shorter than the culm, the bracts similar, short, rarely overtopping the spikes; staminate spike usually 1, long-stalked; pistillate spikes 1-4, distant, oblong, erect, 5"-15" long, 2"-3" thick, densely 10-45-flowered, short-stalked or the upper sessile, the lowest often borne near the base of the culm; perigynia ovoid, ascending, obscurely many-nerved, usually minutely resinous dotted, 1 1/2"-1 3/4" long, suborbicular in cross-section, rounded at base, tapering into a very short entire, or emarginate beak; scales obovate, thin, acute or cuspidate, or the lowest blunt, shorter than the perigynia; stigmas 3.
In moist meadows and on banks, Cape Breton Island to Manitoba, south to northern Maine, Pennsylvania, Tennessee and Kansas. May-July.
Carex oligocarpa Schk.; Willd. Sp. PI. 4: 279. 1805.
Glabrous, culms slender, spreading, roughish, 6'-2o' high. Leaves 1 1/4"-1 3/4" wide, spreading, soft, the basal shorter than or exceeding the culm, the bracts similar, usually exceeding the spikes; sheaths smooth; staminate spike solitary, stalked or nearly sessile; pistillate spikes 2-4, erect or nearly so, distant, loosely 2-8-flowered, 4"-12" long, about 2" thick, erect, the lower filiform-stalked, the upper sessile; perigynia obovoid, firm, pale, finely many-striate, ascending, obtusely triangular, 1 3/4"-2" long, abruptly narrowed into a short straight or oblique entire beak; scales ovate, cuspidate, or short-awned, longer or shorter than perigynia; stigmas 3.
In dry woods and thickets, Vermont and Ontario to Michigan, south to West Virginia, Kentucky and Oklahoma. May-July.