Polygonum sawatchense subsp. sawatchense

Family: Polygonaceae · Type: annual · Native

Polygonum sawatchense is a native annual found in the Klamath Ranges, northern California Coast Ranges, California Ranges, Sierra Nevada, San Joaquin Valley, southwestern California, Great Basin, and desert mountains in dry meadows, pastures, sagebrush, and forest habitats at elevations of 800 to 3,000 meters. Flowering from June to August, this plant produces white or pink-margined green to reddish flowers clustered in open inflorescences 5 to 15 centimeters long. Growing with slender green to brown stems 10 to 50 centimeters tall that are generally branched, it has a delicate, spreading habit. Its narrow leaves are 15 to 45 millimeters long, lance-linear to oblanceolate, with margins rolled under and smooth. The small elliptic or ovate fruits are approximately 3 millimeters long.

Habitat: dry meadows, pastures, sagebrush, forest, sandy, gravelly, rocky substrates

Bloom period: Jun-Aug

Elevation: 800-3000 m

Bioregions: KR, NCoRH, CaRH, SN, SnJV, SW, GB, DMtns

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