Acacia mearnsii

Plant Characteristics
Habit		tree
Height:	⇕	30 ft"ft" can not be assigned to a declared number type with value 30.
Width:	⇔	25 ft"ft" can not be assigned to a declared number type with value 25.
Lifespan:	⌛	perennial
Origin:	✈	Australia
Bloom:	❀	early spring, mid spring, late spring, early summer, mid summer, late summer

Cultivation

Exposure:	☼	sun
Features:	✓	evergreen, flowers, invasive
USDA Zones:		8 to 11
Flower features:	❀	orange, yellow

Scientific Names
Fabaceae >	Acacia >	mearnsii >

Acacia mearnsii is a fast-growing leguminous tree native to Australia. Common names for it include Black Wattle, Acácia-negra (Portuguese), Australian Acacia, Australische Akazie (German), Swartwattel (Afrikaans), Uwatela (Zulu). This plant is now known as one of the worst invasive species in the world.^[1]

The trees are unarmed, evergreen and grow six to 20 meters high. The branchlets are shallowly ridged; all parts finely hairy; growth tips golden-hairy. Leaves dark olive-green, finely hairy, bipinnate; leaflets short (1.5 - 4 mm) and crowded; raised glands occur at and between the junctions of pinnae pairs. Flowers pale yellow or cream, globular flower heads in large, fragrant sprays. Fruits dark brown pods, finely hairy, usually markedly constricted.^[2]^[3]^[4]

Cultivation

Propagation

Pests and diseases

Varieties

Gallery

photo 1
photo 2
photo 3

References

↑ Global Invasive Species Database: 100 Worst Invasive Species
↑ Henderson, L. 1995. Plant invaders of Southern Africa. Agriculture Research Council, ARC/LNR, Pretoria, South Africa. 55 pp.
↑ PIER 2003 Pacific Island Ecosystems At Risk web
↑ De Wit, M.P., Crookes, D.J. and Van Wilgen, B.W. 2001. Conflicts of Interest in Environmental Management: Estimating the Costs and Benefits of a Tree Invasion, Biological Invasions: 3 167 - 178.

External links

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[1] Global Invasive Species Database: 100 Worst Invasive Species

[henderson-2] Henderson, L. 1995. Plant invaders of Southern Africa. Agriculture Research Council, ARC/LNR, Pretoria, South Africa. 55 pp.

[pier-3] PIER 2003 Pacific Island Ecosystems At Risk web

[dewit-4] De Wit, M.P., Crookes, D.J. and Van Wilgen, B.W. 2001. Conflicts of Interest in Environmental Management: Estimating the Costs and Benefits of a Tree Invasion, Biological Invasions: 3 167 - 178.

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