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Carex deweyana . Schwein
DEWEY SEDGE
Life   Plantae   Monocotyledoneae   Cyperaceae   Carex

Carex deweyana
© Les Mehrhoff, 2008-2010 · 2
Carex deweyana

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Carex deweyana
© Les Mehrhoff, 2008-2010 · 1
Carex deweyana

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FamilyScientific name @ source (records)
Pucciniaceae  Puccinia caricis @ BPI (2)

Puccinia @ BPI (1)

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Following modified from Plants Database, United States Department of Agriculture
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Following modified from Flora of North America
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FNA Vol. 23 Page 323, 324 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

86. Carex deweyana Schweinitz, Ann. Lyceum Nat. Hist. New York. 1: 65. 1824.

Plants densely cespitose. Culms 14—89(—101) cm × 0.3—1.1 mm wide, smooth or papillose. Leaves: ligule on distal leaf 0.9—2.2 mm, as long as wide; blades 0.6—4.2 mm wide, widest blade 2.4—4.2 mm wide. Inflorescences 12—56 mm; proximal internode 6—34 mm; proximal bracts 6—49 mm, awn 7—46 mm; spikes (2—)3—5, longest ones 2—5, usually gynecandrous; proximal spikes with 1—2 staminate and (5—)7—12 pistillate flowers, 5.2—11(—13) × (2.1—)3.7—6.9 mm; terminal spikes usually with 1—3(—5) staminate and (7—)9—13(—16) pistillate flowers, 6.8—13 × 3.8—8.1 mm. Pistillate scales with colorless or stramineous margins, 3—4.5 × 1.6—2.2 mm, body 2.8—4.2 mm, apex acuminate to short-awned, awn to 0.6 mm. Staminate scales with colorless or stramineous margins, 3—5.3 × 1.2—1.6 mm, apex acute to acuminate or occasionally short-awned to 0.3 mm. Anthers (1.8—)1.9—2.2 mm. Perigynia erect to ascending, green to pale brown, 0—5-veined abaxially, usually veinless adaxially, narrowly ovate, 4—4.9(—5.2) × 1.3—1.5(—1.6) mm, 2.9—3.8 times as long as wide, apex gradually tapering; beak 1.4—2.1 mm, 0.32—0.4 times as long as perigynia, margins serrulate, apex entire or bidentulate, teeth to 0.2 mm, 0—0.05 times as long as perigynia. Stigmas 1.9—2 mm. Achenes 1.8—2.2 × 1.2—1.5 mm wide, 1.3—1.8 times as long as wide.

Varieties 2 (2 in the flora): North America.

Updated: 2017-11-23 00:38:19 gmt
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