Hesperevax acaulis var. robustior
Big evax
Family: Asteraceae · Type: annual · Native
Big evax is a California native annual found in the Klamath Ranges, northern Coast Ranges, northern inner Coast Ranges, Cascade Range foothills, Sierra Nevada foothills, northern Great Valley, and southern Coast Ranges on slopes, flats, swales, and canyon openings at elevations of 60 to 1,100 meters. Flowering from April to June, this plant produces small white flower heads approximately 3 to 4 millimeters wide, nestled close to the ground. Growing with extremely short stems generally 2 to 7 centimeters tall, it forms compact clusters with minimal branching. Its leaves are oblanceolate to obovate, measuring 12 to 22 millimeters long and 2 to 4 millimeters wide, with erect or slightly spreading tips. The fruit is typically 1 to 1.6 millimeters long, contributing to this diminutive plant's delicate structure.
Habitat: Slopes, flats, swales, canyons, path edges, openings or under shrubs
Bloom period: Apr-Jun
Elevation: 60-1100 m
Bioregions: KR, NCoRO, NCoRI, CaRF, SNF, n&e GV, SCoRO
California counties: Tehama, Butte, Colusa, Humboldt, Tuolumne, Stanislaus, Amador, Mendocino, Tulare, Calaveras, Yolo, El Dorado, Placer, Napa, Shasta, Monterey
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.