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Carex vesicaria
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Blister Sedge
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Carex vesicaria

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About Blister Sedge (Carex vesicaria) Carex vesicaria is a species of sedge known by the common name blister sedge. It is native to northern North America including most of Canada and the northern United States, and it is known from parts of Eurasia. It grows in wet habitat, including many types of wetland, and areas that are soaked or submerged during the spring and dry over the summer. This sedge produces clumps of triangular stems up to about a meter in maximum height. The flower cluster is a loose cluster of flower spikes, many on peduncles. The long cylindrical flower cluster contains up to 150 developing fruits. There are several varieties of this sedge, with high diversity in northeastern Canada.
Plant Description
Plant Type

Max. Height
3.3 ft (1 m)

Flower Color

Native Status

Natural Setting
Site Type
Wet places, shallow water


Elevation ?
-3' - 10550'

Annual Precip. ?
17.9" - 141.4"

Summer Precip. ?
0.28" - 5.35"

Coldest Month ?
21.2° F - 50.3° F

Hottest Month ?
44.9° F - 76.7° F

Humidity ?
0.01 vpd - 24.35 vpd

Landscaping Information

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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