Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: 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 throughout 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
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/