Knotweed-leaved nailwort (Paronychia polygonifolia)
Same genus
- Ahart's nailwort (Paronychia ahartii)
- American nailwort (Paronychia americana)
- Silvery nailwort (Paronychia argyrocoma)
- Baldwin's nailwort (Paronychia baldwinii)
- Smooth forked nailwort (Paronychia canadensis)
- Paper nailwort (Paronychia chartacea)
- Rocky Mountain nailwort (Paronychia pulvinata)
- Rio Grande nailwort (Paronychia congesta)