Classification of the genus Acacia (in the wider sense) has been subject to considerable debate. It is generally agreed that there are valid reasons for breaking it up into several distinct genera, but disagreement in the way this should be done. As of 2012, not all species have been properly renamed and we are currently unable to find information on any new name for this species[
Acacia hooperiana Zipp. ex Miq.
Acacia philippinarurn Benth.
Acacia poilanei Gagnep.
Acacia polycephala DC.
Acacia quisumbingii Merr.
Acacia rugata concinna (Willd.) Kurz
Acacia sinuata (Lour.) Merr.
Guilandina microphylla DC.
Mimosa concinna Willd.
Mimosa sinuata Lour.
Acacia concinna is a prickly plant that varies in habit from a shrub that can either be scandent or climb into other plants, to a small tree[
]. It can grow from 7.5 - 18 metres tall with occasional specimens up to 30 metres[
]. The plant usually produces several main stems which can be up to 10cm in diameter[
The seedpods are widely used as a soap substitute in India, whilst the tree also supplies food, tannins and is used medicinally. The pods are usually harvested from the wild and are a common item of commerce in local markets.
E. Asia - southern China, India, Myanmar, Thailand, Cambodia, Laos, Vietnam, Malaysia, Indonesia, Philippines, New Guinea.
Rain forest, disturbed forest, open grassland, fields, creek sides, in open areas often a sprawling shrub; also recorded from limestone; at elevations from 50 - 1050 metres[
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This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[
Leaves - cooked[
]. The acid-flavoured leaves can be used as a substitute for tamarinds (Tamarindus indica) in chutneys[
]. They are also added to soups[
Fruits - cooked[
]. Roasted, or used as a sour flavouring[
Flowers - cooked and eaten as a vegetable[
This plant is used medicinally[
The bark is a source of tannins[
]. This plant is important for its tannins[
The pods are rich in saponins[
]. They are widely used in India as a detergent for washing silks and woollen goods, and are also very commonly used for washing the hair[
]. They are very effective in cleaning tarnished silver plates[
]. It is said that yarn washed with these pods prior to being dyed will produce much better results from the dyeing[
The seed of most, if not all, members of this genus has a hard seedcoat and may benefit from scarification before sowing to speed up germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing.
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