Grevillea rhyolitica

Scientific name: Grevillea rhyolitica subspecies rhyolitica

Author: Makinson

Common name: Rhyolite Grevillea

Family: Proteaceae 

Location

Grevillea rhyolitica subspecies rhyolitica has only been found near the south coast of New South Wales, in Dampier State Forest and Deua National Park, inland from Moruya. It prefers moist gullies and steep rocky ridges in mountainous areas at 100 to 600 metres above sea level.

Banksia theme garden, in Beds 155 and 158 between the path and the creek bed.

Grevillea rhyolitica subspecies rhyolitica is medium-sized shrub with a pretty pinkish-red flower. Its species name comes from the Rhyolite rock outcrops on which it grows. This is a volcanic rock (known as ‘streaming rock’ because of the flow bands) which has a high silica content and includes pumice and obsidian.

The plants growing in the Banksia theme garden have been grown from cuttings collected from plants growing on a Rhyolite knob near Kiora in Deua National Park.