Acacia armata R. Br.

Common names

Kangaroo Thorn

Article sources


An evergreen shrub 10 ft or more high, of densely bushy shape; young shoots ribbed and usually more or less (sometimes very) bristly. 'Leaves' (phyllodes) in the form generally cultivated closely set on the twigs, obliquely oblong or linear-oblong with a curved point; 12 to 1 in. long, 18 to 14 in. wide; glabrous, dark green. Each joint of the twigs in the typical form is armed with a forked pair of needle­like spines 1/6 to 12 in. long which are really modified stipules, but these are often absent in cultivated forms. Flowers rich yellow, produced in balls 13 in. wide singly or in pairs, each ball on a slender stalk 13 to 34 in. long. Pod 112 to 2 in. long, 1/6 to 14 in. wide, softly silky. Bot. Mag., t. 1653.

Native of Australia where it is widespread, although absent from Tasmania; introduced in 1803. It is the best known and commonest of pot-grown or green­house acacias, requiring little winter heat and always flowering well in spring. It is cultivated out-of-doors, happiest against a wall, in various Cornish gardens. There are quite a number of forms in cultivation, varying chiefly in the size and shape of the phyllodes.

A. acinacea Lindl. – A closely allied species, differing mainly in its non-spiny stipules.



Other species in the genus