Locally common on damp silt on margins of artificial wetlands created for kaki (Himanotopus novae-zelandiae) management. growing with Glossostigima elatinoides, G. cleistanthum (see http://naturewatch.org.nz/observations/2723621), G. diandrum, Centipeda aotearoana, Limosella lineata, Myriophyllum triphyllum, Riccia cavernosa (see http://naturewatch.org.nz/observations/2722895) and Dysphania pusilla.