Rosa pisocarpa

Cluster rose

Family: Rosaceae · Type: shrub · Native

Cluster rose is a California native shrub found in thickets and moist woodlands, forming dense clusters with straight to slightly curved prickly stems. Flowering from May to July, this plant produces delicate pink flowers 12 to 18 millimeters wide with petals in soft, clustered arrangements. Growing up to 2 to 3 meters tall, the shrub develops arching branches with distinctive woody stems and scattered prickles. Its compound leaves feature terminal leaflets that are ovate-elliptic, generally single-toothed, and slightly wider near the base with obtuse tips. The fruit is a spheric to ovoid rose hip 7 to 13 millimeters wide, with persistent erect sepals and containing 20 to 30 small achenes.

California counties: Del Norte, Siskiyou, Trinity, Butte, Mendocino, Shasta, Humboldt, Plumas, El Dorado, Fresno, Mono, Nevada, Tuolumne, Yuba, Tehama, Lake, Alpine, Placer, Sonoma

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