Acacia neorigida


Acacia neorigida is a shrub of the genus Acacia that is native to southwest parts of Western Australia and is found from around Kellerberrin in the Wheatbelt region in the north down to around Wagin in the south.
The name replaces Acacia rigida Maslin, which had been previously used for a fossil species from Switzerland.

Description

The compact or sprawling shrub typically grows to a height of and a width of up to. It has reddish to orange coloured branches with branchlets that are densely covered in fine hairs and setaceous stipules that are in length. 2.5–3.5 mm long. The rigid green phyllodes have inequilaterally lanceolate to narrowly lanceolate shape that is sometimes linear. The pungent glabrous phyllodes are in length and wide and have five main nerves and a prominent mid-rib. It blooms and produces simple inflorescences that occur singly in the axils. The spherical flower-heads contain 8 to 12 loosely pack golden flowers. The shallowly curved, red-brown seed pods that form after flowering are to in length and have a diameter of. The pods contain oblong shaped seeds that around in length.

Distribution

It is endemic parts of the Wheatbelt region of Western Australia extending from Kellerberrin in the north east around Meckering in the north west to parts of the Darling Range to the east of Mundaring in the south west to Cuballing in the south east where it grows in deep sandy soils or gravelly loam or clay soils in scrub or woodland communities.