Eriogonum alpinum

This rare plant is endemic to northern California.[2] It is known from only about ten occurrences in the Mount Eddy and Cory Peak areas of the Trinity Mountains, within the Shasta-Trinity National Forest in southern Siskiyou County and northwestern Trinity County.[2]

It grows in rocky serpentine soils at elevations of 2,185–2,900 metres (7,169–9,514 ft), in subalpine coniferous forest, upper montane coniferous forest, and alpine fell-field habitats.[2] The Trinity Mountains are a range of the Klamath Mountains System.

Eriogonum alpinum is a perennial herb growing in mats, no more than 15 centimetres (5.9 in) wide and 8 centimetres (3.1 in) tall. The woolly greenish leaves are rounded and one to three centimeters long.[1]

The plant produces an erect inflorescence of bright yellow to pinkish flowers, each under a centimeter wide.[1]

The fruit is an achene about half a centimeter long.[1]

This species is a California Department of Fish and Wildlife listed and a California Native Plant Society listed endangered species.[3]

• Endemic flora of California
• Flora of the Klamath Mountains

• Calflora Database: Eriogonum alpinum (Trinity buckwheat)
• Jepson Manual eFlora (TJM2) treatment of Eriogonum alpinum
• UC CalPhotos gallery of Eriogonum alpinum (Trinity buckwheat) images