Recording Persicaria maculosa and P. lapathifolia (Polygonaceae)

Persicaria maculosa Gray (Redshank) is a distinct species which can be distinguished from all forms of P. lapathifolia (L.) Delarbe (Pale Persicaria) based on the outer tepal veins. The recording and identification these two taxa clouded by colour variation (especially in latter species) due to varied treatments different works or Floras. This article describes ways separate gives details various order for others decide taxonomic work should followed. It suggests that there greater need further morphological molecular studies this complex group form consensus. Hybrids may occur but none have been confirmed scientific methods. most s.l.) are recognizable as varieties, also suggested (informally at present) author below, until clarifies situation.