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Mimosa Bush

(Acacia farnesiana, fam. Mimosaceae)

Acacia farnesiana Acacia farnesiana Acacia farnesiana Acacia farnesiana Acacia farnesiana
Form or habit: Shrub or small tree
Leaf:Compound Alternate

Alternate, ferny bipinnate with 1-6 pairs of pinnae and 5-20 pairs of narrow rounded, yellowish green to green leaflets, 4-8mm long. Spiny stipules 2-45mm long.

Flower conspicuous: Conspicuous
Flower colour: Golden yellow to orange
Flower description:Fluffy golden yellow to orange in globular heads about 10mm wide, borne in axillary groups of 1-3; fragrant.
Fruit conspicuous: Conspicuous
Fruit colour: Dark brown or black
Fruit: Dry
Fruit description: Cylindrical, somewhat inflated, dark brown or black indehiscent woody pods, 40-85 x 9-17mm, persist on plants over a long period. Seeds black and surrounded by pith.
Distribution:Invades/Threats: Waterways, trampled areas around stock watering sites, uncultivated pastures where it can form thickets hindering mustering, roadsides and unmanaged land, particularly on heavy soils in drier areas.
Food source for:
Toxicity:No toxicity known
Origin:Tropical America, Asia, Africa
Weed status:Environmental/garden escapee
Notes:Probably a pre-European introduction to Australia and now widely naturalised. To date has seldom been recorded in this region; some plants found in the northern reaches of Whitsunday catchment and at Andergrove. Young pods and accessible foliage eaten by stock. Pods roasted and eaten by Aboriginies. Cultivated overseas to manufacture perfumes.
Information sources: Mackay Regional Pest Management Group (2011) Weeds of the Mackay Whitsunday Region

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