An indigenous (?) prostrate herb grows among grass in light shade of the Northern dry and intermediate regions.
*An addition to the flora of Sri Lanka by J. &J. de Vlas, 2008
*** With the J. & J. deVlas, 2019 this plant was re-identified as endemic Dicliptera neesii. So that Peristrophe japonica is no longer a plant species occurs in Sri Lanka.
An introduced grass species with uncertain origin but surely native to the Old World. Common in weedy grassy areas with at least partial shade and in lawns and flower beds from 500 to 800 m elevations (As per Flora of Ceylon Vol 8. But it is now spread to much lower elevations)
Common native shrub or tree found in dry zone forests, open scrub lands, sand dunes, secondary sub montane forests, coconut plantations, mangrove swamp margins and gallery forests along sandy river banks from sea level to 1500m elevations. Fruits edible.