Identificaciones de wallumia

Along Hilliards Creek.

Photo 4: numerous spots on underside of leaf - hence name of Spotted Mangrove.

Photos 5 & 6: root system (roots are able to take in air).

Moreton Bay Ramsar internationally important wetlands.

Datum: WGS84
GPS accuracy: 3m

Just inside Moreton Bay Ramsar wetland boundary.

Growing on soft, crumbly and eroding claypan, adjacent to creek. Groundwater seepage is available.

New housing and landscaping is nearby, and there is ready access to the claypan on foot and by bicycle.
Given these factors I regard the specimen and its immediate landscape as fragile, and perhaps vulnerable to decline.

Surprised to find this specimen, as White-flowered Black Mangroves are rare on Redland's mainland coast.
This may be the southernmost limit of their range on the mainland at the present time. Climate change could impact this species - it has little option to move inland with rising sea-level (due to human infrastructure barriers); it remains to be seen if it is able to migrate southwards.

However, this locality has proven to be fertile ground for the species, with more members being identified close by.
I have previously encountered only one member of the species at Redland (in Geoff Skinner Wetlands), not far to the north.

Just outside Moreton Bay Ramsar wetlands boundary.

Growing just within the marine couch-Casuarina forest zone, where tides are infrequent. The substrate is reasonably soft and groundwater seepage is available.

Surprised to find this specimen, as White-flowered Black Mangroves are rare on Redland's mainland coast.
This may be the southernmost limit of their range on the mainland at the present time. Climate change could impact this species - it has little option to move inland with rising sea-level (due to human infrastructure barriers); it remains to be seen if it is able to migrate southwards.

However, this locality has proven to be fertile ground for the species, with more members being identified nearby.
I have previously encountered only one member of this species (in Geoff Skinner Wetlands), not far to the north.