Qualla: Mulga Lands

Mulga Lands: Introduction

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Hesperian, CC BY-SA 3.0. For months at a time, the country looks dead. Red sand stretches flat to the horizon, the grasses are bleached to straw, and the silver-grey acacias stand still in air that shimmers with heat. Then it rains, and within days the Mulga Lands transform: dormant seeds split open, ephemeral lakes fill across the plains, and birds arrive in their tens of thousands to feed and breed before the water vanishes again. This is a landscape built around the wait. Spanning more than 250,000 square kilometres of inland Queensland and New South Wales, the bioregion takes its name from the tree that defines it - the mulga, Acacia aneura - and from the patient, boom-and-bust rhythm that mulga has spent millions of years learning to survive.

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Image: Hesperian | CC BY-SA 3.0

Mulga Lands: The Tree That Engineers Rain

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Z3lvs, CC BY-SA 4.0. The mulga is not a passive survivor; it shapes its own fortune. What look like narrow grey-green leaves are actually phyllodes - flattened leaf stalks angled to reflect the harsh sun and slow evaporation. The whole architecture of the tree tilts inward, so that the rain it does c...

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Image: Z3lvs | CC BY-SA 4.0

Mulga Lands: Three Ways the Water Runs

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Hesperian, CC BY-SA 3.0. Flat as it appears, the bioregion sheds its rare rain in three different directions. On the eastern side, creeks like the Wallam, Nebine and Mungallala feed the Warrego and Paroo rivers and ultimately the great Murray-Darling system. To the southwest, the Bulloo River empties int...

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Image: Hesperian | CC BY-SA 3.0

Mulga Lands: Country and Custodians

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Hesperian, CC BY-SA 3.0. Long before pastoralists arrived, these plains were home to Aboriginal peoples who read the land's rhythms with precision - among them the Bidjara, the Kunja, who speak the Gunya language, and neighbouring groups including the Kooma, Budjiti, Mardigan, Murrawarri and Kullilli. Fo...

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Image: Hesperian | CC BY-SA 3.0

Mulga Lands: When the Lakes Come Alive

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Hesperian, CC BY-SA 3.0. The bioregion's drama peaks at its wetlands. When Lakes Wyara and Numalla flood within Currawinya National Park, they can host a quarter of a million birds - rainbow bee-eaters, freckled and musk ducks, black swans, pelicans, egrets and glossy ibis crowding water that will be gon...

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Image: Hesperian | CC BY-SA 3.0

Mulga Lands: A Working Wilderness

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Hesperian, CC BY-SA 3.0. Most of the Mulga Lands remain sparsely peopled and given over to grazing, and that is both their preservation and their threat. Around 80 percent of the original vegetation still stands, especially in the dry inland west - but together with the neighbouring Brigalow Belt, this i...

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Image: Hesperian | CC BY-SA 3.0