Lasianthus oliganthusLasianthus oliganthus is a species of plant in the family Rubiaceae. It is endemic to Sri Lanka.LeavesAcute to obtuse base, pointed apex, 4-5 lateral veins.TrunkBranches slender, slightly rough, adpressed hairs.FlowersVery small, sessile, solitary, or 2 or 3.FruitsVery small, depressed berry, truncate at top.EcologyRain forest understory of wet zone.