Rosa pisocarpa subsp. ahartii

Ahart rose, Ahart Rose

Family: Rosaceae · Type: shrub · Native

Ahart rose is a California native shrub found in the northern Sierra Nevada and northern Sierra Nevada Ranges in generally moist areas at elevations of 150 to 1,700 meters. Flowering from May to August, this plant produces white to pink flowers in small clusters of 1 to 3 blossoms. Growing 40 to 150 centimeters tall with slender, flexible stems that have sparse small prickles at the nodes, it forms an open, somewhat arching habit. Its compound leaves typically have 5 leaflets, with the terminal leaflet measuring 20 to 45 millimeters long, dark green and somewhat leathery in texture. The fruit develops as a small, nearly ovoid rose hip approximately 8 to 13 millimeters wide with a short neck.

Habitat: Generally +- moist areas

Bloom period: May-Aug

Elevation: 150-1700 m

Bioregions: CaR, n SN

California counties: Butte, Siskiyou, Tehama, Plumas, Yuba, Nevada, Sacramento, Trinity, Shasta, Mariposa, Placer

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