Aquatic and Wetland Vascular Plants of the Northern Great Plains
62. Cyperaceae, the Sedge Family
2. Carex L. -- Sedge15. Carex crawei Dewey
Culms arising singly or few together from long-creeping rhizomes, weakly trigonous, 0.6-4 dm long. Leaves 1-4 mm wide; sheaths tight, hyaline ventrally. Spikes unisexual, cylindric, terminal one staminate, lateral ones pistillate, 2-5, remote, the lowest nearly basal, compactly flowered, 1-3 cm long; bracts leaflike with well-developed sheaths, the lowest one best developed, with the sheath 5-15 mm long, the blade not exceeding the terminal spike; scales reddish-brown with a pale or greenish midrib, shorter and narrower than the perigynia. Perigynia green to brown, ellipsoid to ovoid-ellipsoid, 2.3-3.5 mm long, many-nerved; beak absent or to 0.4 mm long, entire to bidentulate; achenes trigonous, 1.3-1.7 mm long; stigmas 3. Jun--Jul. Wet meadows, ditches and seepage areas; occasional, n ND to e SD and most of NE; (Que. to se B.C., s to NJ, AL, MO, OK, WY and UT).
 Carex crawei (from Hermann 1970). |
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