Acacia longifolia

Acacia longifolia is a species of Acacia native to southeastern Australia, from the extreme southeast of Queensland, eastern New South Wales, eastern and southern Victoria, and southeastern South Australia. Common names for it include Acacia Trinervis, Aroma Doble, Golden Wattle, Sallow Wattle and Sydney Golden Wattle. It is not listed as being a threatened species,^[2][1] and is considered invasive in Portugal and South Africa.^[3] It is a tree that grows very quickly reaching 7-10m in five to six years.^[4]

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Subspecies

There are two subspecies:^[2]

• Acacia longifolia subsp. longifolia
• Acacia longifolia subsp. sophorae (Labill.) Court

Uses

Acacia longifolia is widely cultivated in subtropical regions of the world. Its uses include prevention of soil erosion, food (flowers, seeds and seed pods), yellow dye (from the flowers), green dye (pods) and wood.^[5] The flower colour derives from the organic compound kaempferol.^[6] The tree's bark has limited use in tanning, primarily for sheepskin. It is useful for securing unihabited sand in coastal areas, primarily where there are not too many hard frosts.^[7]

Phytochemistry

• N-(2-imidazol-4-yl-ethyl)-trans-cinnamamide^[8]
• N-(2-imidazol-4-yl-ethyl)-deca-trans-2, cis-4-dienamide^[8]

References

1. ^ ^{a b} ILDIS LegumeWeb
2. ^ ^{a b} Australian Plant Name Index: Acacia longifolia
3. ^ Vespa australiana pode ajudar a reduzir invasão das acácias
4. ^ Warringah Online
5. ^ Plants for a Future: Acacia longifolia
6. ^ Lycaeum: Phytochemistry Intro
7. ^ Google Books Select Extra-tropical Plants Readily Eligible for Industrial Culture Or Naturalization: With ... By Ferdinand von Mueller
8. ^ ^{a b} Repke, DB. The histamine amides of Acacia longifolia. Lloydia. 1975 Mar-Apr;38(2):101-5.