Carex intumescens

Carex intumescens

Taxobox


image_caption =
regnum = Plantae
divisio = Magnoliophyta
classis = Liliopsida
ordo = Poales
familia = Cyperaceae
genus = Carex
species = Carex intumescens
binomial = Carex intumescens
binomial_authority =

"Carex intumescens", also known as Bladder sedge.

Family: Sedge (Cyperaceae) Flowering: May-September Field Marks: This species differs by its solitary male spike and its 1-3 nearly round female spikes, each with 2-12 inflated perigynia 1/2-1 inch long and widest below the middle, tapering to a beak. Habitat: Moist woods, meadows, swampy woods, bogs. Habit: Tufted perennial herb from a thickened rootstock. Stems: Upright, rather slender, triangular, up to 3 feet tall, smooth. Leaves: Elongated, dark green, up to 1/3 inch wide, usually somewhat rough along the edges. Flowers: Borne in spikes, with usually 1 male spike and 1-3 female spikes; male spike slender, long-stalked and extending above the female spikes; female spikes round, up to 1 1/2 inches across, with 2-12 perigynia; female scales lanceolate, awn-tipped or sometimes merely rounded at the tip, about 1/2 as long as the perigynia. Sepals: 0. Petals: 0. Stamens: 3. Pistils: Borne in perigynia, the perigynia inflated, ovoid, smooth, shiny, many-nerved, 1/2-1 inch long, tapering to a 2-toothed beak; styles 3. Fruits: Achenes triangular, up to 1/4 inch long, with flat or concave sides. Notes: The achenes are eaten by wildlife.


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