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..
Carex blanda Dewey, Am. Journ. Sci. 10: 45. 1826.
Glabrous, pale greerr, culms nearly smooth, flattened, usually coarsely cellular, loosely erect, 6'-2° high. Lower leaves usually shorter than culm, 1 1/2"-7" wide; the leaflike bracts and upper leaves with loose sheaths, their margins much crisped; staminate spike usually short-stalked or sessile, the scales rarely reddish-brown-tinged; pistillate spikes 2-4, oblong or linear-oblong, 3"-13" long, rather closely 8-25-flowered, the upper two contiguous to staminate spike and sessile or nearly so, the lower distant and stalked; perigynia obovoid, ascending, 1 1/4"-1 1/2" long, more than 1/2" thick, narrowed at base, strongly nerved, contracted into a short stout outwardly bent entire beak; scales ovate with broad white scarious margins usually shorter than the perigynia, the lower strongly awned.
Maine and Ontario to Virginia, Arkansas and Kansas. Intergrades with the next. May-July.
Carex laxiflora Lam. Encycl. 3: 392. 1789.
Carex laxiflora var. gracillima Boott, 111. Car. 1: 37. 1858.
Glabrous, rather pale green, culms erect or reclining, slender, roughish above, 6'-2° long, scarcely if at all two-edged. Leaves 1 1/2"-3 1/2" wide, soft, the lower mostly shorter than the culm, the bracts similar to the culm-leaves sometimes overtopping the spikes, their sheaths tight, the margins little crinkled; staminate spike usually stalked, its scales rarely reddish-brown tinged; pistillate spikes 2-4, distant, linear-cylindric, loosely several-many-flowered, 1/2'-1 1/4' long, 1 1/2-2" thick, more or less peduncled, spreading, or the upper erect; perigynia ascending, obovoid, more or less oblique, 1 1/4"-1 1/2" long, rather more than i" thick, narrowed at the base, strongly many-nerved, contracted into a short stout outwardly bent entire beak; scales ovate with broad white scarious margins, usually shorter than the perigynia, at least the lower strongly awned; stigmas 3.
C. anceps var. patulifolia Dewey, Wood's Bot. 423. 1845.
C. laxiflora var. patulifolia Carey, in A. Gray, Man. Ed. 2,
Glabrous, deep green, culms nearly smooth, often much flattened, loosely erect, 6-20 high. Lower leaves shorter than culm, 2 1/2"-10" wide; bracts similar to narrower culm-leaves, the upper usually overtopping the spikes; staminate spike prominent, long- or short-stalked, the scales rarely reddish-brown tinged; pistillate spikes 2-4, loosely and alternately 5-15-flowered, distant and slenderly stalked or the upper approximate and short-stalked; perigynia appressed-ascending, elliptic-obovoid, obtusely 3-ang]ed, strongly nerved or nearly nerveless, 1 3/4" long, 3/4" wide, tipped with a short straight or slightly oblique beak; scales ovate, scarious, the lower abruptly short-awned; stigmas 3.
Woods, Newfoundland to Michigan, North Carolina and Tennessee. May-July.