Samiksha Jaiswal

Eriogonum callistum

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Kingdom  Plantae
Family  Polygonaceae
Scientific name  Eriogonum callistum
Order  Caryophyllales
Genus  Eriogonum
Rank  Species
Eriogonum callistum httpsuploadwikimediaorgwikipediacommonsthu
People also search for  Eriogonum argillosum

Eriogonum callistum is a rare species of wild buckwheat, known by the common name Tehachapi buckwheat.

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Distribution

The perennial herb is endemic to California, found only in the southwestern Tehachapi Mountains, in Kern County, Southern California. There are an estimated 2000 individuals in existence, in several sites on the eastern Tejon Ranch, between Castaic Lake and the Antelope Valley. It is found on the Tejon Ranch.

It grows in rocky limestone soils in chaparral habitat among manzanitas. The plant was only described to science in 2006.

Description

Eriogonum callistum is a perennial herb forming a mat of woolly whitish green herbage on a woody base measuring up to 35 centimeters tall and up to 1 m (3 ft.) wide. It grows from a woody taproot and branching caudex. It is covered in rosettes of leaves each up to 5 centimeters long by 2 wide. The blades are coated densely in grayish white silky hairs.

The inflorescence arises on an erect stem up to 40 or 45 centimeters tall which is whitish and hairy when new and turns reddish as it ages. The inflorescence itself is a cluster of up to 35 flowers a few centimeters wide. The woolly flowers are pink-tinged when in bud and turn bright white when open. The stamens are tipped with yellow or pink anthers.

Within genus Eriogonum this is the only species in the new section named Lanocephala in subgenus Eucycla.

Conservation

Eriogonum callistum is a Critically Imperiled endemic species in California, and is on the California Native Plant Society Inventory of Rare and Endangered Plants of California, listed as Seriously Endangered in California.

References

Eriogonum callistum Wikipedia


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