A synopsis of the genus Persicaria (Polygonaceae) in Thailand
A synopsis of Persicaria Mill. in Thailand is presented which summarizes the results of recent work on the family. Twenty-one species and 26 taxa are recognized, including three species, Persicaria paradoxa, P. pubescens and P. wallichii which are newly recorded in the country. Persicaria barbata var. stagnina, P. nepalensis, P. paradoxa and Polygonum viscosum var. α ramosissimum are lectotypifi ed. Two new combinations are made, P. chinensis var. hispida and P. paradoxa. Keys to the species and varieties are provided, together with information on distribution and ecology.
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