Aconogonon davisiae
Davis knotweed
Family: Polygonaceae · Type: perennial · Native
Davis knotweed is a California native perennial found in the Klamath Ranges, northern Coast Ranges, northern California Ranges, and northern Sierra Nevada Mountains in talus and rocky sites of snow accumulation at elevations of 1,500 to 2,800 meters. Flowering from June to August, this plant produces green-yellow to pink-white flowers in small axillary raceme-like clusters. Growing with ascending to erect stems 15 to 40 centimeters tall that branch from the base, it has a distinctive glabrous to scabrous texture. Its lanceolate to broadly ovate leaves are generally glaucous and yellow-green, with truncate to cordate bases and oblique ocrea margins 0.5 to 3 centimeters long. The fruit is a shiny yellow-brown ovate-oblong structure 3.5 to 6 millimeters long, exserted from the flower clusters.
Habitat: Talus, rocky sites of snow accumulation
Bloom period: Jun-Aug
Elevation: 1500-2800 m
Bioregions: KR, NCoRH, CaRH, n&c SNH
California counties: Siskiyou, Amador, Humboldt, Placer, Trinity, Alpine, Lassen, Butte, Nevada, Plumas, Shasta, Sierra, Mendocino, Tehama, Lake, Del Norte, Madera, El Dorado
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.