Rumex stenophyllus

Narrowleaf dock

Family: Polygonaceae · Type: perennial · Not Native

Narrowleaf dock is a naturalized perennial herb found in the Great Valley, southern California coastal regions, and mountain provinces in wet, disturbed, and slightly saline habitats at elevations up to 150 meters. Flowering from June to August, this plant produces small green to reddish flowers in dense, interrupted terminal clusters with whorls of 20 to 25 flowers. Growing with erect stems 40 to 80 centimeters tall, it develops a vertical taproot and forms a generally glabrous plant. Its oblong to narrowly lanceolate leaves measure 15 to 25 centimeters long and 2 to 7 centimeters wide, with entire to irregularly toothed margins that are often wavy. The fruit is dark or red-brown, measuring 2 to 2.5 millimeters long with three roughly equal oblong tubercles.

Habitat: Uncommon. Wet, disturbed or marginal habitats, +- saline soils

Bloom period: Jun-Aug

Elevation: < 150(1250) m

Bioregions: GV, SCo, MP

California counties: Lassen, San Diego, Merced, Ventura, Los Angeles, Orange, Monterey, Siskiyou, Butte, Kern, Yolo, Madera, Sacramento, Solano, Santa Cruz

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