noun
- A plant of the genus Polygonella, characterized by jointed or segmented stems and small flowers, found in sandy or dry regions of North America.
Usage: botanical term; also called knotweed in some regions
Examples
- Jointweed thrives in the sandy soils of coastal areas.
- The delicate flowers of jointweed bloom in late summer.
- Botanists identified several species of jointweed in the preserve.
- Jointweed is adapted to dry, nutrient-poor environments.