Beach Knotweed

Polygonum paronychia Cham. & Schltdl. - Buckwheat family

Size

Mature Height: Up to around 3.0 feet

Plant Type: Subshrub

Features

Flower Color: White, Pink

Bloom Time: Early Spring, Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer

Ecosystem Interactions

Pollinators: Larval Host (Moth)

Larval Species depending on Beach Knotweed: Lasionycta arietis, Lasionycta wyatti, Synanthedon polygoni

Native Range

  • CAN:  British Columbia
  • USA:  California, Oregon, Washington
Regional Native Status: L48 (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.