Eriogonum gracile
Encyclopedia
Eriogonum gracile is a species of wild buckwheat
Eriogonum
Eriogonum is the scientific name for a genus of flowering plants, in the family Polygonaceae. The genus is found in North America and is known as wild buckwheat. This is a highly species-rich genus, and indications are that active speciation is continuing...

 known by the common name slender woolly buckwheat. It is native to California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, where it is widespread across the state, and to parts of northwestern Mexico. It grows in many types of habitat, often in sandy places. It is often found on clay
Clay
Clay is a general term including many combinations of one or more clay minerals with traces of metal oxides and organic matter. Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure.- Formation :Clay minerals...

 soils. It is an annual herb which is quite variable in appearance. It grows erect to decumbent with a slender, branching stem 10 to 70 centimeters long, sometimes with a thick coat of woolly fibers and sometimes nearly hairless. The oblong leaves are borne on short petioles
Petiole (botany)
In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...

, the largest at the base of the plant with blades approaching 6 centimeters long. There are usually leaves along the lower part of the stem. The leaves are woolly in texture, at least on the undersides. The flowering stem is lined with small clusters of hairless flowers in shades of pink, yellow, or white.

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