Persicaria thunbergii var. oreophila has
an annual height of 30-100cm and occurs in forests in hilly
districts, the stems erect, with prickles downwards. Leaves are
alternate, oval triangles and 5-8cm in length. Three to eight
flowers come in the inflorescences that emerged from branch tops,
perianths white. Bloom time: August-October.
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