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. Some authorities have wanted to transfer this species to the genus Racosperma, but the latest decision (in 2011 and still not fully accepted) is that it remains in Acacia[
This species is closely related to Acacia pravissima[
Acacia cultrata Paxton
Acacia glaucifolia Meissn.
Acacia glaucophylla F.Cels
Acacia papuliformis Loudon
Acacia scapuliformis (A.Cunn. ex G.Don) Pedley
Racosperma cultriforme (G.Don) Pedley
Common Name: Knife-Leaf Wattle
Acacia cultriformis is an erect or spreading, much-branched shrub that can grow up to 4 metres tall365]. Although it produces leaves as a seedling, llike most members of the genus the mature plant does not have true leaves but has leaf-like flattened stems called phyllodes[
The plant is harvested from the wild for local use as a food and a dye. Very ornamental, especially when in flower, it is often grown in gardens and makes an excellent, intruder-proof hedge.
Australia - New South Wales and Queensland.
]. Dry sclerophyll forests and heath[
]. Grows in sand or clayey loam in Eucalyptus communities[
]. Woodland, heath and mallee, often in rocky sites[
|Other Uses Rating||
|Cultivation Status||Ornamental, Wild
Acacia cultriformis is native to the warm temperate zone of southeast Asia and requires winters that are mild and do not experience many frosts. It is said to be able to tolerate occasional frosts to as low as -7°c.
Prefers a well-drained sandy loam and a very sunny position[
]. Succeeds in dry soils and is drought tolerant once established. Succeeds in any good garden soil that is not excessively limey[
]. Most species become chlorotic on limey soils[
An ornamental species, with at least one named cultivar.
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[
Flowers - cooked[
]. Rich in pollen, they are often used in fritters.
Plants are heavily armed with thorns and make a good screen or hedge in warm temperate areas[
The cultivar 'Austriflora Cascade' is a prostrate, ground cover[
A yellow dye is obtained from the flowers[
A green dye is obtained from the seed pods[
Seed - best sown as soon as it is ripe in a sunny position in a warm greenhouse[
]. Stored seed should be scarified, pre-soaked for 12 hours in warm water and then sown in a warm greenhouse in early spring. The seed germinates in 3 - 4 weeks at 25°c[
]. As soon as the seedlings are large enough to handle, prick them out into individual pots and grow them on in a sunny position in the greenhouse for their first winter. Plant them out in late spring or early summer, after the last expected frosts, and consider giving them some protection from the cold for their first winter outdoors.
Cuttings of half-ripe wood with a heel, mid summer in individual pots in a frame[
]. Overwinter in a greenhouse for the first winter and plant out in their permanent positions in late spring or early summer. Fair percentage[