Agrostis hallii

Hall's bent grass, Hall's Bent Grass

Family: Poaceae · Type: perennial · Native

Hall's bent grass is a California native perennial found in western Northwest California, central Coast, San Francisco Bay Area, northern southern California, and Western Transverse Ranges in open oak woodland and conifer forest at elevations below 1,800 meters. Flowering from May to July, this grass produces delicate, pale inflorescences 7 to 22 centimeters long in lanceolate to narrowly ovate clusters. Growing with slender stems 17 to 100 centimeters tall and spreading rhizomes up to 50 centimeters long, it forms dense grass clumps. Its leaf blades are flat, 7 to 20 centimeters long and 2 to 5 millimeters wide, with distinctive ligules 4 to 7 millimeters long. The plant's compact spikelets feature glumes 2.5 to 4 millimeters long with short callus hairs and minute pale anthers.

Habitat: Open oak woodland, conifer forest

Bloom period: May-Jul

Elevation: < 1800 m

Bioregions: w NW, CCo, SnFrB, n SCo, WTR

California counties: Humboldt, Alameda, Contra Costa, Del Norte, Marin, Mendocino, San Francisco, San Mateo, Siskiyou, Sonoma, Napa, Santa Cruz, Santa Clara, Santa Barbara, San Luis Obispo, Monterey, Lake, Trinity, Mariposa, Nevada, Ventura, Solano

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