Sidalcea hirsuta

Hairy checkerbloom

Family: Malvaceae · Type: annual · Native

Hairy checkerbloom is a California native annual found in the northern Coast Ranges, northern Sierra Nevada foothills, central Sierra Nevada, and Great Valley in vernally wet grasslands and pools at elevations below 1,100 meters. Flowering from April to June, this plant produces dark rose-pink flowers 13 to 25 millimeters long in dense clusters. Growing 30 to 80 centimeters tall with stout stems that are nearly glabrous below and densely bristly above, it develops intricate branching. Its leaves have distinctive lobed blades with upper leaf lobes being narrowly linear and acute, creating a delicate textural appearance. The fruit segments are 3 to 4 millimeters long with wrinkled backs and net-veined surfaces.

Habitat: Vernally wet places, pools, grassland

Bloom period: Apr-Jun

Elevation: < 1100 m

Bioregions: NCoR, CaRF, n&ampc SNF, GV.

California counties: Butte, Mariposa, Fresno, Tuolumne, Sacramento, Tulare, Mendocino, Merced, Tehama, Yuba, Calaveras, Shasta, Glenn, Napa, San Joaquin, El Dorado, Madera, Stanislaus, Sutter, Lake, San Bernardino, Los Angeles, Solano, Yolo

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