''Eriogonum incanum'' is a species of wild buckwheat known by the common name frosted buckwheat. It is native to the

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...

and extreme western

Nevada Nevada ( ; ) is a state in the Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the 7th-most extensive, ...

. It is also known from

Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idah ...

.Jepson Manual Treatment
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Description

This is a

dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproducti ...

perennial herb which forms mats up to 20 centimeters tall and 30 wide, sometimes quite a bit smaller. It has clusters of woolly, petioled leaves one to two centimeters long that form a gray-green or yellowish layer on the sandy soil or among rocks. The plant bears dense, rounded clusters of flowers, sometimes on erect stalks, that are yellow, red, or both. Male plants produce

staminate The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filam ...

flowers 2 or 3 millimeters wide, and female plants produce slightly larger

pistillate Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) '' pistils' ...

flowers.

References

External links

''Eriogonum incanum'' - Photo gallery
incanum Flora of California Flora of Nevada Flora of the Sierra Nevada (United States) Dioecious plants Flora without expected TNC conservation status {{Polygonaceae-stub