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Eastern star sedge

Carex radiata (Wahlenb.) Small

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Eastern star sedge
Eastern star sedge habit
Eastern star sedge inflorescence
Eastern star sedge spikes and bracts

Morphology

Culm
Erect to ascending to prostrate, 3-sided, very slender, grooved.
Leaves
3-6, basal and alternate on lower 1/4 of culm; blades 1 to 16 inches long, 1/25 to 1/12 inch wide, shorter than flowering culm, ascending to arching, flat, glabrous, margins and mid-vein rough.
Sheath
Tight around culm, green.
Ligule
U-shaped, as wide or wider than long.
Inflorescence
1 to 3 inches long, 1/5 to 1/3 inch wide; lowest bract bristle-like, 2 to 3 inches long, extending above upper spike; spikes, 4-8, upper spikes sometimes close to one another, lowermost spikes well separated; perigynia 3-9 per spike, spreading or reflexed, sessile, tip obtuse, acute, or awned, staminate flowers at tip, pistillate flowers at base; pistillate scales ovate, half as long as perigynia, mid-vein green, tip rounded to bluntly pointed; staminate scales inconspicuous; perigynia green to yellowish brown, ovoid-lanceoloid, 1/10 to 1/8 inch, 2-3 times as long as wide, longitudinally ridged, margins minutely toothed in upper 1/3, tapering to short 2-toothed beak; stigmas 2, reddish brown, mostly straight.
Fruit
Achenes, yellowish to dark brown, ovoid.

Ecology

Habitat
Mesic to wet woodlands, often in seasonal wet areas.
Distribution
East 1/4 of Kansas

Additional Notes

Comments

Forms dense clumps. The old, dead leaves often persist to the next growing season. Carex radiata is very similar to Carex rosea.

Quick Facts
Plant Type
Sedge
Family
Cyperaceae - Sedge Family
Life Span
Perennial
Height
8-32 inches
Last Updated
2023-02-03
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: April, May, June