Fauna
Plant

River Red Gum

Eucalyptus camaldulensis

Also known as Murray Red Gum, Red Gum

River red gums anchor the freshwater river systems of inland Australia, sending deep taproots down to the water table to endure severe arid droughts. Mature hollows take over a century to form, providing critical nesting and roosting habitat for dozens of bird, bat, and marsupial species. Known among campers as widow makers, these giants readily self-prune massive limbs during prolonged heat or water stress to conserve moisture.

RiparianIconicFlowering
River Red Gum reference1 / 7
(c) MargaretRDonald, some rights reserved (CC BY-SA) · cc-by-sa
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Near ThreatenedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNear ThreatenedRed List categories, explained →
Key facts
Diet & preyPhotosynthesis
Predators
  • Koala
  • Red gum lerp psyllid
  • Longicorn beetle larvae
ThreatsRiver regulation, altered flood regimes, salinity, and firewood harvesting
HabitatsRiparian corridors, floodplains, billabongs, and ephemeral watercourses
Life span500–1,000 years
Classification
  1. OrderMyrtales
  2. FamilyMyrtaceae
  3. GenusEucalyptus
  4. SpeciesEucalyptus camaldulensis
Range & activity
Range data is not available yet.
Safe observation
Interaction riskHigh
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is high
Foliage contains concentrated essential oils toxic to dogs and cats if ingested.
Why it is dangerous
Leaves and bark contain high levels of cineole and volatile terpenes that cause vomiting, excessive drooling, diarrhea, and weakness in pets.
How to recognize a risky encounter
Look for a spreading canopy with drooping, sickle-shaped leaves and smooth, mottled cream and grey bark.
What to do
Prevent dogs from chewing on fallen branches or foliage, and exercise care around brittle, falling limbs.
What to notice
Dominates riparian zones throughout the interior, recognizable by massive twisted trunks tracing river meanders.
Support conservation
Avoid driving vehicles across exposed root zones and leave dead fallen timber on the ground for local wildlife.
Responsible observation
  • Campsite safety: Never pitch tents or park vehicles directly under large horizontal branches.
  • Hollow watching: Scan dead spouts at dusk to spot emerging parrots, owls, or gliders.
  • Bark inspection: Examine smooth trunks after winter rains to appreciate vivid yellow and grey hues.
Related species
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