Gratiola sexdentata (Gratiola)
Binomial name: Gratiola sexdentata
Synonym: Gratiola glandulifera
Common name: Gratiola
Gratiola sexdentata is a native terrestrial to semi-aquatic spreading perennial herb forming patches up to 1 m. It is found though out New Zealand. Though it is common in some local areas it is absent in others. It is a green leafed plant with reddish brown stems and small trumpet-like white flowers.
Sold in specialised nurseries.
For more details visit: http://nzpcn.org.nz/flora_details.aspx?ID=1956