Hesperolinon adenophyllum

Glandular western flax, Glandular Western Flax

Family: Linaceae · Type: annual · Native

Conservation status: CNPS 1B.2

Glandular western flax is a rare (CNPS 1B.2) California native annual found in northern and central Coast Ranges, especially in Lake and Mendocino counties, in serpentine chaparral at elevations of 150 to 1,000 meters. Flowering from May to August, this plant produces yellow flowers with orange veining that fade to white, each blossom around 3 to 5 millimeters long. Growing 10 to 50 centimeters tall with slender stems, it displays distinctive leaves with gland-tipped teeth arranged in 1 to 3 rows. Its leaves are opposite or whorled near the base, lanceolate and keeled, clasping the stem with margins edged by distinctive stalked, glandular teeth. The delicate plant bears yellow stamens and three yellow styles, creating an intricate botanical profile typical of serpentine habitat specialists.

Habitat: Serpentine, chaparral

Bloom period: May-Aug

Elevation: 150-1000 m

Bioregions: n&ampc NCoR (esp Lake, Mendocino cos.).

California counties: Lake, Mendocino, Butte, Alameda, Humboldt

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.