Citation: F. Muell., Fragm. Phyt. Aust. 5:91 (1865).

Synonymy: Polygonum cunninghamii Meissner in DC., Prod. 14:85 (1856).

Common name: Lignum, tangled lignum.

Description:
Shrub with many intricate striate branches, usually 1-2 m high, the rigid branchlets often ending in a spine; leaves linear or lanceolate, caducous and usually absent from the older branches.

Flower-clusters in interrupted racemes, which are sometimes paniculate; female flowers shortly pedicellate: fruiting perianth c. 5 mm long, with a tube which is nearly as long as the lobes.

Nut ovoid-conical, trigonous, shining.

	Fruiting perianth (above) and fruit
Image source: fig. 95c in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Published illustration: Costermans (1981) Native trees and shrubs of south-eastern Australia, p. 172.

Distribution:    All mainland States. Conservation status: native Flowering time: Aug. — March.

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: No text

Author: Not yet available