Distribution: China, Malaysia, Myanmar, Thailand, Vietnam
Image locations: Khao Yai N.P. Nakhon Ratchasima
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