Polygonum  persicaria 
Lady's Thumb
| Family | 
| Polygonaceae | 
| Genus | 
| Polygonum | 
| Species | 
| persicaria | 
| Category | 
| Weeds | 
| Growth | 
| Medium | 
| Leaf Description | 
| Leaves alternate along stems, slender and pointed, somewhat lance-shaped. Hairy on the top side with black, brown or purplish colour marks on leaves with a thumb-like appearance. | 
| Flower Description | 
| Flowers are clustered in terminal spikes at the ends of stems. Individual flowers are small and usually pink in colour but can occasionally be white. |