Carex lasiocarpa Ehrh. - Woolly-fruited Sedge


 

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Carex lasiocarpa - (image 1 of 5)

 

Taxonomy

Family: Cyperaceae

 

Section Paludosae

Habitat

Wet meadows, fens, shores.

Associates

 

Distribution

Circumboreal; North American plants with slightly smaller perigynia and shorter beak teeth have been calls ssp. americana.

Morphology

Perennial to 1 m, forming vigorous colonies from creeping rhizomes; leaves glabrous or scabrous, permanently folded along the midrib and tending to appear subterete, only 1-1.5(-2) mm wide as folded; terminal spikelet staminate, 2-5 cm, often subtended by one or two shorter, sessile staminate spikes; pistillate spikes two or three, 1-4 cm, sessile or the lowest one on an erect, slender peduncle; leafy bracts present, the lowest elongate, often surpassing the terminal spikes; perigynia pubescent, 2.8-4.3 mm long; stigmas 3; achenes trigonous.

Notes

Fruiting June to August

Wetland indicator: OBL

Similar to C. pellita except for the folded leaves (those of C. pellita are essentially flat). Often dominant in wet calcareous sedge meadows and easily recognized by the wispy filiform leaf tips of the vegetative shoots.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY

 


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Michael Hough 2018