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Carex lasiocarpa

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About Slender Sedge (Carex lasiocarpa) Carex lasiocarpa is a species of sedge known by the common names slender sedge and woollyfruit sedge. This is an aquatic or shore plant of wet areas in mountainous areas of moderate elevation. It is found across much of North America and Eurasia. It is colonial, forming thick, floating mats on the water in wetlands and monotypic stands on shorelines and lakesides. From a rhizome it bears erect stems which may exceed a meter in height and very long, very thin leaves. The stem has one to several compact pistillate spikes and at the tip one longer, fluffy staminate spike. The pistillate spike vaguely resembles a tiny purplish or brownish ear of corn, with several ovaries which each form a fruit.
Plant Description
Plant Type

Max. Height
2 - 4 ft (0.6 - 1.2 m)

Flower Color

Native Status
Natural Setting
Site Type
Lake and pond shores


Elevation ?
53' - 6642'

Annual Precip. ?
31.9" - 71.9"

Summer Precip. ?
0.39" - 2.52"

Coldest Month ?
28.3° F - 47.1° F

Hottest Month ?
56.6° F - 70.9° F

Humidity ?
0.43 vpd - 21.97 vpd

Landscaping Information
Other Names
Common Names
Woollyfruit Sedge

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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