New Zealand Map Series 1:
N137 231 035 (WGS84 -39.790097 174.67929)
New Zealand Map Series 260:
R22 538 559 (WGS84 -39.790151 174.678977)
Latitude and Longitude (WGS84):
39°47´ S 174°40.7´ E (WGS84 -39.783333 174.678333)
Abundance:
Local
Altitudes:
from 60m
Habitat:
Open water of dune lake with swamp margins (more than 2m of water).
Ogle 2865. Red-brown masses on water surface (as seen from shore), rooted more than 2m below surface. The only emergent species in middle of lake. Occasional .