Geum macrophyllum

Large-leaved avens

Family: Rosaceae · Type: perennial · Native

Large-leaved avens is a California native perennial found in various bioregions in moist forest, meadow, and streamside habitats. Flowering from May to August, this plant produces bright yellow flowers 5 to 7 millimeters wide with rounded, obovate petals. Growing with erect stems 20 to 110 centimeters tall, it forms a tufted habit that dries to a greenish color. Its compound leaves reach 10 to 45 centimeters long, with 2 to 4 leaflets on each side and a terminal leaflet that is 8 to 10 centimeters wide, bluntly heart-shaped and three-lobed with irregular tooth edges. The fruit develops a hooked style 2.5 to 6 millimeters long with a glandular surface.

California counties: San Bernardino, Fresno, Siskiyou, El Dorado, Inyo, Tulare, Mono, Del Norte, Modoc, Plumas, Butte, Lassen, Madera, Tuolumne, Amador, Mendocino, Placer, Shasta, Alpine, Trinity, Calaveras, Glenn, Mariposa, Sierra, Humboldt, Kern, Nevada, Tehama, Colusa, Lake

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