Map info: Provinces are highlighted according to phytogeographical areas as used in the Flora of Thailand project.
Additional notes: According to The Plant List subsp. angustifolium is a synonym of Desmodium reticulatum however Hiroyoshi Ohashi recognises it as a subspecies in his paper Taxonomic Studies in Desmodium heterocarpon (L.) DC. (Leguminosae)
Images of Desmodium heterocarpon subsp. angustifolium from Thailand.
Desmodium heterocarpon subsp. angustifolia Khao Yai N.P. Nakhon Ratchasima October