Plants of Outback South Australia: new edition

After nearly 15 years out of print, the second, fully revised edition of Plants of Outback South Australia has been published. A collaboration between the State Herbarium of South Australia (Botanic Gardens and State Herbarium) and the Pastoral Unit (Department for Environment and Water), this is a key field guide to South Australia’s arid lands.

Continue reading “Plants of Outback South Australia: new edition”

Limestone Copperburr fruiting

Limestone Copperburr (Sclerolaena obliquicuspis) in fruiting in two colour variations side by side in Copley in winter. A small sprawling shrub, 20cm high, with white hairs on leaves, stems and the base half of fruit spines.

Gall Midge on Ruby Saltbush

These pom-pom-like formations (1-2cm across) on Ruby Saltbush are galls created by a type of Diptera Midge infestation which is one of several species hosted by specific chenopods. These galls impede flowering and fruiting of the plant, instead hosting the Gall Midge which lays eggs into the new flower bud. Larvae then feed within the gall, the remains of which can be seen below.

Gall containing live larvae
Gall almost expended
Gall Midge larval casing
Gall Midge larval cavities
Continue reading “Gall Midge on Ruby Saltbush”