All Species in Persicaria
- Arrowleaf Tearthumb (Persicaria sagittata)
- Bog Smartweed (Persicaria setacea)
- Branched Tearthumb (Persicaria meisneriana)
- Bristly Smartweed (Persicaria hispida)
- Carey's Smartweed (Persicaria careyi)
- Curlytop Knotweed (Persicaria tomentosa)
- Denseflower Knotweed (Persicaria glabra)
- Dotted Smartweed (Persicaria punctata)
- Field Smartweed (Persicaria segetum)
- Hairy Smartweed (Persicaria hirsuta)
- Halberdleaf Tearthumb (Persicaria arifolia)
- Jumpseed (Persicaria virginiana)
- Pennsylvania Smartweed (Persicaria pensylvanica)
- Stout Smartweed (Persicaria robustior)
- Swamp Smartweed (Persicaria hydropiperoides)
- Tapertip Smartweed (Persicaria acuminata)
- Water Knotweed (Persicaria amphibia)