Senecio triangularis

Arrowleaf ragwort

Family: Asteraceae · Type: perennial · Native

Arrowleaf ragwort is a California native perennial found in the Klamath Ranges, Cascade Range, Sierra Nevada, southern California mountains, and Great Basin in damp places, open conifer woodland, and rocky streambanks at elevations of 100 to 3,300 meters. Flowering from June to September, this plant produces yellow ray flowers 9 to 15 millimeters long with yellow disk flowers in heads arranged in flat-topped or raceme-like clusters. Growing 50 to 120 centimeters tall with 1 to several stems emerging from a branched woody base, it has glabrous or sparsely hairy stems. Its leaves are broadly triangular, 3 to 10 centimeters long and 2 to 6 centimeters wide, with dentate edges and varying from narrowly to widely triangular, tapering to a truncate or heart-shaped base. The fruit is 2.5 to 3.5 millimeters long and glabrous.

Habitat: Damp places, open conifer woodland, rocky streambanks

Bloom period: Jun-Sep

Elevation: 100-3300 m

Bioregions: KR, CaR, SN, SnGb, SnBr, PR, GB

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