Ludwigia peploides subsp. montevidensis

Family: Onagraceae · Type: perennial · Native

Water primrose is a naturalized perennial found in southern North Coast, northern and central Sierra Nevada Foothills, Central Valley, and southern Coast Ranges in lakeshores, streambanks, floodplains, and seasonal wetlands at elevations below 500 meters. Flowering from May to November, this plant produces yellow flowers 10 to 16 millimeters long with spreading-hairy sepals. Growing 50 to 230 centimeters tall with creeping, floating, or erect stems that are slightly sticky and spreading-hairy, it has distinctive mucronate leaf tips. Its leaves have petioles 5 to 32 millimeters long, arranged alternately along the stems. The fruit is a cylindric capsule 24 to 32 millimeters long, tapered at the base and carried on pedicels 7 to 38 millimeters long.

Habitat: Lakeshores, streambanks, floodplains, seasonal wetlands

Bloom period: May-Nov

Elevation: < 500 m

Bioregions: s NCo, n&ampc SNF, GV, SCo

California counties: Tuolumne, Sacramento, Stanislaus, Los Angeles, Amador, Contra Costa, El Dorado, Sutter, Shasta, Marin, Alameda, San Joaquin, Glenn, Butte, Tehama, Placer, Solano, Mendocino, Yolo, Napa

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