Grindelia nana

Idaho gumweed

Family: Asteraceae · Type: perennial · Native

Idaho gumweed is a California native perennial found in the northern California Mountains and Modoc Plateau in dry, sandy hills and roadsides at elevations of 100 to 1,800 meters. Flowering from June to September, this plant produces yellow flowers in heads 7 to 12 millimeters wide with 11 to 28 ray flowers 5 to 11 millimeters long. Growing with decumbent to erect stems 10 to 50 centimeters tall, it branches throughout its structure with a robust, spreading habit. Its leaves are oblanceolate, 3 to 9 centimeters long, ranging from yellow to gray-green with entire or slightly serrate margins and a distinctive resinous surface. The fruit is light brown, 3.5 to 4 millimeters long with two pappus awns at the top.

Habitat: Dry, sandy hills, roadsides

Bloom period: Jun-Sep

Elevation: 100-1800 m

Bioregions: CaR, MP

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