small Philippine acacia USDA PLANTS Symbol: ACCO
U.S. Nativity: Exotic
Habit: Hardwood Trees
Acacia confusa Merr

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Taxonomic Rank: Magnoliopsida: Fabales: Fabaceae (Leguminosae)
Synonym(s): ianangi, pilampwoia, shoshigi, sosigi
Native Range: Philippine Islands, Taiwan (BAIL);

Appearance
Acacia confusa is a small many branched tree or shrub in the family Fabaceae. It is native to Australia, Indonesia, and Papua New Guinea. Acacia confusa grows up to 13 ft. (4 m) tall and 3.3 ft. (1 m) in diameter. It bears straight stipular thorns.
Foliage
The foliage on mature Acacia confusa are usually falcate phyllodes. They are alternate and have a leathery texture. Leaves have parallel curving veins. They range from 3-4 in. (8-10 cm) long and are narrowed at both ends. Foliage on juvenile Acacia confusa are usually of bipinnate with 4-8 pairs of pinnae. Each pinnae has 10-12 pairs of small asymmetric leaflets.
Flowers
Acacia confusa flowers are small, rounded, yellow heads ranging from 0.23-0.3 in. (6-8 mm) in diameter. 1 to 3 flowers heads can be found in the axil of the phyllode. Acacia confusa flowers are fragrant and have numerous stamens.
Fruit
The fruit of Acacia confusa are pods that each contain about 8 brown, compressed, elliptic seeds. Fruit pods are dark brown to black. They range from to 3 in. (8 cm) long, to 0.5 in. (12 mm) wide. The pods are plump and usually slightly curved or twisted.
Ecological Threat
Acacia confusa can form monocultures and it has proven to be an invasive problem in some islands after introduction.

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Plant(s); Habit
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Tree(s); Habit
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); Habit
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); Flowering habit
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Foliage; Flowers and leaves
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Foliage; Fruit
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Foliage; Leaves and seedpods
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Foliage; Leaves and seedpods
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.


Invasive Listing Sources:
University of Hawaii, Botany Department, Hawaiian Alien Plant Studies, 1998