About Amphibolis antarctica (Labill.) Asch.
Amphibolis antarctica (Labill.) Asch. is a herbaceous perennial that reaches up to 80 centimetres (31 inches) in height. It has shorter leaves than the other Amphibolis species, A. griffithii. Its green flowers bloom from September to February. The species is generally recorded growing from Exmouth Gulf on the north-west coast of Western Australia, south along the west coast, and east along the south coast as far as Wilsons Promontory in Victoria. However, FloraBase documents an isolated specimen found east of Port Hedland, which is over 500 kilometres (310 miles) north-east of Exmouth Gulf. This species grows primarily in the sublittoral zone, where it forms extensive meadows. It can grow at depths of up to 27 metres (89 feet), but rarely forms meadows below 13 metres (43 feet). It can also grow in extremely shallow water, with its leaves floating on the water surface, though this growth environment often leads to leaf damage and loss. The species tolerates a wide range of habitats, and has been found growing on various substrates including sand-covered rock, gravel, sand, and clay. It grows in areas of both high and low water flow, and can be found in locations with very high salinity.
