River Red Gum
Eucalyptus camaldulensis
NEMBA category
English: Red River Gum, Murray Red Gum; Red Gum; Rostrata Gum
Afrikaans: Rooibloekom
Eucalyptus camaldulensis, commonly known as the River Red Gum, is a tall, fast-growing tree with smooth, mottled bark that often peels to reveal a reddish hue. It is a highly invasive species in South Africa, where it invades riparian areas, displacing native vegetation and altering water flow.
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Origins: Australia
Overall Appearance: A tall, fast-growing tree with a smooth, mottled bark that often peels to reveal a reddish hue. Can reach heights of 30 meters or more with a wide canopy.
Leaves: Lance-shaped, alternate leaves with a bluish-green color.
Flowers: White, creamy flowers arranged in clusters typically occuring during spring and summer.
Fruits: Woody, cup-shaped capsules containing numerous small seeds.
Seeds: Small, numerous, and easily dispersed by wind.
Bark: Smooth, mottled bark that often peels in long strips, revealing underlying shades of red, white, and grey.
Wood: Hard, durable wood used for various purposes.
Soil Type: Prefers well-drained soils, but can tolerate a range of soil types.
Aspect: Full sun
Uses:
Timber production
Fuelwood
Honey production (from the nectar of its flowers)
Ornamental planting (though often not recommended due to its invasive nature)
Birds Attracted: Can attract some bird species, but often displaces native trees and reduces biodiversity for birds.
Insects Attracted: May attract some insects, but can also have negative impacts on native insect populations.
Mammals Attracted: Some mammals may utilize the tree for shelter or food (e.g., possums may feed on the bark).
Provinces Affected: Widespread across South Africa, particularly along rivers, streams, and in riparian zones.
Note: River Red Gum is a highly invasive species in South Africa. It invades riparian ecosystems, displaces native vegetation, alters water flow, and increases the risk of fire. Its deep roots can deplete water resources and its dense canopy can shade out native understory plants.
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