Polygonum bidwelliae, commonly known as Bidwell's knotweed, is a perennial herbaceous plant that belongs to the family Polygonaceae. Native to California, United States, this plant has a prostrate growth habit and can reach up to 30 cm in height. Its leaves are lanceolate, alternate, and green with prominent veins.
The flowers of Polygonum bidwelliae are small and pinkish-white, arranged in clusters at the ends of the stems. They bloom from June to September. The plant produces a fruit known as an achene, which contains a single seed.
Polygonum bidwelliae thrives in moist soil with good drainage but can also tolerate dry conditions once established. It grows well in both full sun and partial shade.
Native Americans have historically used this plant for medicinal purposes, including treating diarrhea, stomachaches, and skin irritations.
Overall, Polygonum bidwelliae is an attractive groundcover that provides excellent erosion control on slopes and banks. Its delicate flowers and foliage also add beauty to gardens and natural landscapes.
Botanical profile.
- Genus
- Polygonum
- Family
- Polygonaceae
Other names.