83.
Carex
leptopoda
Mackenzie in P. A. Rydberg, Fl. Rocky Mts. 124, 1060. 1917.
Carex deweyana Schweinitz subsp. leptopoda (Mackenzie) Calder & Roy L. Taylor; C. deweyana var. leptopoda (Mackenzie) B. Boivin
Plants loosely to densely cespitose. Culms 21—67 cm × 0.7—1.4 mm, smooth or papillose. Leaves: ligule of distal leaf (2.5—)3.4—6.8(—7.4) mm, 1.5—3 times as long as wide; blades 2.4—5.9 mm wide, widest blade 2.8—5.9 mm wide. Inflorescences (17—)34—43(—68) mm; proximal internode 4.1—16(—40) mm; proximal bract (11—)16—26(—61) mm, awn (9—)13—23(—59) mm; spikes 5—7, usually gynecandrous; proximal spikes with 2 staminate and 11—23 pistillate flowers, 8—15 × 3.3—5.8 mm; terminal spikes usually with 2—4 staminate and 16—20 pistillate flowers, 9—12.7 × 4.2—5.7 mm. Pistillate scales with whitish to stramineous margins, 2.6—3.3 × 1.2—1.8 mm, body (2.3—)2.7—3.8, apex acuminate to short-awned, awn to 0.7 mm. Staminate scales with whitish to stramineous margins, 1.9—2.8 × 1—1.3 mm. Anthers 1.8—1.9 mm. Perigynia ascending to erect, green to pale brown, 0—3-veined abaxially, prominently to weakly 0—2-veined adaxially, ovate to narrowly ovate, 3.3—3.9(—4.4) × 1.1—1.5 mm, 2.3—3 times as long as wide, apex abruptly contracted to gradually tapering; beak 0.9—1.5(—1.7) mm, (0.28—)0.3—0.38 times as long as perigynia, margins serrulate, apex entire or bidentulate, teeth to 0.3 mm, 0—0.08 times as long as perigynia. Stigmas 1.3—1.8 mm. Achenes 1.5—1.8(—1.9) × 0.9—1.4 mm, 1.2—1.5(—1.7) times as long as wide. 2n = 54.
Fruiting spring—summer. Mesic to wet forests, forest edges, especially near streams; 0—2500 m; B.C.; Calif., Idaho, Mont., Oreg., Wash.
