Fauna
Plant

Austral Grass-tree

Xanthorrhoea australis

Also known as Southern Grass Tree, Grasstree

Austral grass-trees are iconic slow-growing monocots whose trunks form from dense, resinous leaf bases glued together over centuries. Bushfires play a vital ecological role, clearing away dead leaf skirts and triggering massive flowering spikes that can shoot up several centimeters a day. The tall flower spikes produce copious nectar, serving as crucial feeding stations for native honeyeaters, lorikeets, and pollinating insects.

Fire-AdaptedSlow-GrowingFlowering
Austral Grass-tree reference1 / 7
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & preyAutotrophic (photosynthetic)
Predators
  • Swamp Wallaby
  • Feral Goat
  • Long-nosed Potoroo
ThreatsPhytophthora root rot, illegal poaching, land clearance, altered fire regimes
HabitatsEucalypt woodlands, dry sclerophyll forests, coastal heaths
Life spanUp to 350–450 years
Classification
  1. OrderAsparagales
  2. FamilyAsphodelaceae
  3. GenusXanthorrhoea
  4. SpeciesXanthorrhoea australis
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
What to notice
Look for a thick, fire-blackened trunk crowned by a fountain of narrow, stiff, arching leaves and a tall central flower spike.
Support conservation
Never disturb root zones or harvest plants, and always use trail wash stations to prevent transmitting fungal pathogens.
Responsible observation
  • Boot Hygiene: Clean soil from boots before hiking to prevent spreading dieback fungus.
  • Post-Fire Timing: Look for massive flowering spikes months after controlled burns or bushfires.
  • Trail Etiquette: Stay on marked paths to avoid damaging delicate shallow root networks.
Related species
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