| Portuguese | English |
| mal-casada | green smartweed (Persicaria lapathifolia, Polygonum lapathifolium L., Polygonum nodosum Pers.) |
| mal-casada | pale persicaria (Persicaria lapathifolia, Polygonum lapathifolium L., Polygonum nodosum Pers.) |
| mal-casada | pale smartweed (Persicaria lapathifolia, Polygonum lapathifolium L., Polygonum nodosum Pers.) |
| mal-casada | knotted persicaria (Persicaria lapathifolia, Polygonum lapathifolium L., Polygonum nodosum Pers.) |
| mal-casada | dock-leaved persicaria (Persicaria lapathifolia, Polygonum lapathifolium L., Polygonum nodosum Pers.) |
