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Adelaide Hills Grass Tree

Adelaide Hills Grass Tree

Xanthorrhoea semiplana

Family Asphodelaceae

Slow-growing icon

About

An iconic, extremely slow-growing grass tree of southern South Australia, taking many decades to form even a short trunk, which makes old plants a living record of how long a patch of bushland has gone unburnt or undisturbed.

How to spot it

Flat (not square) leaf cross-section distinguishes it from the related Xanthorrhoea quadrangulata. Subspecies semiplana is usually trunkless and under 1m tall; subspecies tateana, found on Kangaroo Island, develops a distinct trunk over 1m. Sends up a tall flowering spike after fire or in warmer months.

Found in

  • Belair National Park
  • Morialta Conservation Park
  • Onkaparinga River National Park
  • Sturt Gorge Recreation Park
  • Flinders Chase National Park

Source: Wikipedia

Photo: DiverDave (CC BY-SA 4.0) via Wikimedia Commons