| Prostrate Knotweed | |
| Knotweed | |
| Birdgrass | |
| Doorweed | |
| Waygrass |
| Plant Habit: | Vine |
| Life cycle: | Other |
| Water Preferences: | In Water |
| Minimum cold hardiness: | Zone 8a -12.2 °C (10 °F) to -9.4 °C (15 °F) |
| Maximum recommended zone: | Zone 7a |
| Flower Color: | White Yellow |
| Flower Size: | 4"-5" |
| Propagation: Seeds: | Sow in situ |
| Pollinators: | Midges Birds |
| Conservation status: | Vulnerable (VU) |
