water knotweed
water knotweed (ITIS, 2010) is a synonym English vernacular name for:
Persicaria amphibia (Linnaeus) Delarbre , an accepted species name sensu FNA Ed. Comm., 2005.
water knotweed (ITIS, 2010) is a synonym English vernacular name for:
Persicaria amphibia (Linnaeus) Delarbre , an accepted species name sensu FNA Ed. Comm., 2005.