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Cloud Sedge
Carex haydeniana

About Cloud Sedge (Carex haydeniana) Carex haydeniana is a species of sedge known by the common name cloud sedge. It is native to western North America from British Columbia to California to New Mexico, where it grows in moist, rocky areas in subalpine and alpine climates. This sedge produces clumps of drooping to decumbent stems up to 30 or 40 centimeters long, often much shorter. There are a few flat leaves per stem, each up to about 16 centimeters long. The flower cluster is a dense dark brown spherical cluster of indistinct spikelets.
Plant Description
Plant Type

Flower Color

Native Status

Natural Setting
Site Type
Rocky slopes, flats, moist soil

Part Shade

Elevation ?
3604' - 14083'

Annual Precip. ?
6.2" - 56.8"

Summer Precip. ?
0.82" - 3.39"

Coldest Month ?
17.4° F - 48.7° F

Hottest Month ?
36.3° F - 73.7° F

Humidity ?
1.39 vpd - 26.78 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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