Persicaria microcephala

Persicaria microcephala, the small-headed knotweed, is a species of flowering plant in the family Polygonaceae. It is native to the Himalayas, and central and southern China, and it has been introduced to Great Britain. Its cultivar 'Red Dragon' has gained the Royal Horticultural Society's Award of Garden Merit.

Subtaxa

The following varieties are accepted:

Persicaria microcephala var. microcephala
Persicaria microcephala var. ''sphaerocephala''