Cyclospermum leptophyllum

Marsh parsley

Family: Apiaceae · Type: annual · Not Native

Marsh parsley is a naturalized annual found in the north coastal ranges, central California valleys, central Coast Ranges, San Francisco Bay Area, southern coastal ranges, and southern California coastal areas along roadsides at elevations below 350 meters. Flowering from April to August, this plant produces tiny white flowers in small compact clusters less than 2 centimeters wide. Growing with slender stems 20 to 60 centimeters tall, it has a delicate, spreading habit with multiple thin branches. Its finely divided leaves are 3.5 to 10 centimeters long, featuring thread-like to linear segments 3 to 15 millimeters in length that give the plant a feathery, intricate appearance. The fruit is small, elliptic to ovate, measuring 1.2 to 3 millimeters wide.

Habitat: Roadsides

Bloom period: Apr-Aug

Elevation: < 350 m

Bioregions: NCoRO, GV, c CCo, SnFrB, SCoRO, SCo

California counties: Los Angeles, San Diego, Alameda, Riverside, Fresno, Merced, Orange, San Mateo, Kern, Santa Barbara, Monterey, San Francisco, Sacramento, Contra Costa, Stanislaus, Santa Clara, San Luis Obispo, San Joaquin, Placer, Butte, Humboldt, Santa Cruz, San Bernardino, Ventura, Yolo

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