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Carex albida L. H. Bailey
Life   Plantae   Monocotyledoneae   Cyperaceae   Carex

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FNA Vol. 23 Page 477, 479 , 480 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

331. Carex albida L. H. Bailey, Mem. Torrey Bot. Club. 1: 9. 1889.

White sedge

Carex sonomensis Stacey

Plants densely to loosely cespitose; rhizomes thick, short. Culms to 60 cm. Leaves: blades 3—6 mm wide. Inflorescences longer than 15 cm, proximal internodes 100—250 mm; peduncles of proximal spikes commonly exserted less than 1 cm; proximal bracts with blade 40—125 mm, sheaths cylindric, 11—75 mm, mouth not purple-banded, 1.3—2.1 mm wide. Spikes 5—7; lateral spikes androgynous or pistillate, the proximal spikes erect to pendent, 9—20 × 5—8 mm; terminal spike staminate or androgynous, ± erect, 9—19 × 2.5—4.5 mm. Pistillate scales usually scarious with green to gold midvein, obovate to ovate, 2—4 × 1.2—2 mm, apex obtuse to acuminate or, sometimes, awned. Staminate scales gold with pale midvein with broad scarious margins, usually obovate, 2.8—4.3 × 1—2.4 mm, apex acute to short-awned. Anthers 1.4—2.2 mm. Perigynia spreading, green to gold, 11—16-veined, ovate to obovate, 3.1—4.5 × 1—1.6 mm, margins often ciliate distally, glabrous; beak distinct, 0.6—1.2 mm, apex white, ciliate, distance from beak tip to achene apex less than 1.4 mm.

Fruiting late spring—early summer. Sphagnum bogs; of conservation concern; less than 90 m; Calif.

Carex albida is similar to C. lemmonii and is now known from only one station in Sonoma County.

Updated: 2019-09-21 05:25:13 gmt
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