Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Water Pepper (Polygonum hydropiperoides) is a native perennial herb that grows in northern, southern and central California. It is slow growing and moderately long-lived. It grows in a flat form to a height of feet, with active growth during the summer. Flowers are green and bloom in the at unpredictable times of the year. Leaves are dark green and deciduous. It tends to grow in wet streambanks, at elevations from 0-4900 feet.

Plant type

Perennial herb

Size

1 - 3 ft Tall

Dormancy

Winter Deciduous

Calscape icon
Color

Green

Special uses

Water features or wet habitats

Sun

Full Sun

Propagation

For propagating by seed: 5 mos. stratification at 50°F (Crocker and Barton 1957).

Site type

Wet banks

Plant communities

Wetland-Riparian

Caterpillars
Butterflies

Butterflies and moths supported

1 confirmed and 27 likely

Confirmed Likely

Purplish Copper

Lycaena helloides

Garden Webworm Moth

Achyra rantalis

Civil Rustic

Caradrina montana

Guenée's Carpet Moth

Ceratodalia gueneata