Plant of the month 01/2024: Carallia brachiata

Photo: Julia Hazel

Carallia brachiata is not a rare species in our area but it can be easily overlooked amongst dense creek-bank vegetation. Fortunately it’s often ‘flagged’ by a bright yellow caterpillar poised conspicuously on a dark green leaf (photo above). These distinctive caterpillars of the Four o’clock Moth Dysphania numana rarely feed on other trees, so they are a convenient aid for identifying Carallia brachiata.

During NPQ outings to Cleveland Creek we’ve seen Carallia brachiata (Rhizophoraceae) as a small tree, both along the upstream section of the creek and downstream. However, as its common name Freshwater Mangrove suggests, this species doesn’t extend into the inter-tidal zone. And in less crowded situations, Carallia brachiata grows taller and develops a fine shady canopy like this specimen in Cairns (photo below).

Photo: Russell Cumming

Carallia brachiata has oval leaves that are glossy dark green on the upper side and dull light green underneath (photo below).

Photo: Russell Cumming

Carallia brachiata produces clusters of small greenish-cream flowers (photo below) that develop into globular red fruits (photo second below) relished by many birds.

Photo: Russell Cumming
Photo: Russell Cumming