https://pfaf.org/user/Plant.aspx?LatinName=Oldenlandia+diffusa
Oldenlandia diffusa is a ANNUAL growing to 0.3 m (1ft) by 0.3 m (1ft in). See above for USDA hardiness. It is hardy to UK zone 8. It is in flower from August...
oldenlandia diffusaneedle grassplant databasesnakepfaf