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Matted Buckwheat
Eriogonum caespitosum

About Matted Buckwheat (Eriogonum caespitosum) Eriogonum caespitosum is a species of wild buckwheat known by the common name matted buckwheat, or mat buckwheat. This is a common perennial plant native to the western United States from California to Montana, especially the Great Basin. It is also cultivated as a rock garden plant. This is a tough perennial plant which grows in flat, woody mats in sand and gravel substrates. It has small, fuzzy gray leaves which are scoop-shaped due to their rolled edges. From the mat emerge many erect flower clusters with clusters of greenish-yellow and bright red rounded flowers which hang backwards over the edge of the involucre. Some of the flowers are bisexual and up to a centimeter wide each, and some are only staminate and are much smaller.
Plant Description
Plant Type
Perennial herb

Max. Height
3.6 in (9.1 cm)

Flower Color
Yellow, Red

Flowering Season
Spring, Summer

Native Status

Natural Setting
Site Type
Sandy or gravel places

Part Shade

Elevation ?
4459' - 12285'

Annual Precip. ?
7.0" - 49.4"

Summer Precip. ?
0.53" - 2.44"

Coldest Month ?
19.2° F - 35.1° F

Hottest Month ?
40.6° F - 65.8° F

Humidity ?
1.07 vpd - 20.97 vpd


Landscaping Information
Common uses
Butterfly Gardens, Bee Gardens

Nursery Availability
Rarely Available

Other Names
Common Names
Mat Buckwheat, Mat Eriogonum, Matted Wild Buckwheat

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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