Citation: A. P. de Candolle, Prodr. 2:451 (1825), Mem. Leg. 446 (1826-1827),

Derivation: anceps (L.)—two edged, refers to the flattened angled stems.

Synonymy: Acacia anceps, Acacia glaucescens, Acacia muelleri, Acacia pterigoidea

Common name: None

Description:
Erect, rigid, glabrous, spreading shrubs 1-3 m high, the same or more across, branching from the ground; branchlets compressed or flattened and very acutely angled or winged.

Phyllodes linear oblong, narrow obovate, broadly ovate-oblong oblique 1-5 cm long, 1-3.5 cm broad, thick rigid often undulate, glaucous, broad-based with the lower edge continuous and decurrent with the stem, or with a short pulvinus, 1-veined with numerous fine lateral veins, margins thickened and vein-like. Glands either basal or near middle on upper margin.

Inflorescences axillary and solitary; flower-heads globular large, deep golden yellow, c. 40-flowered; peduncles stout 1-2.5 cm long; flowers 5-merous.

Legumes stipitate flat often undulate, straight or curved, 3-5 cm long, 10-12 mm broad, coriaceous, wrinkled or marked with prominent transverse lines; margins thickened vein-like. Seeds transverse in legume; funicle long, folded under the seed then 1/2 or more encircling the seed in a double fold, thickening into a small aril.

Distribution:  S.Aust.: NU, EP. Flowering time: September — February (mainly summer months).

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

Biology: No text

Taxonomic notes: A. anceps is a food plant for the larvae of the butterfly Jalmenus icilius, Fischer (1978).

Maslin & Whibley (1987) give an enlarged description of A. anceps, an account of its synonyms and possible hybrids as well as a key to A. anceps and its related species.

Cultivation: These varieties are useful for planting in coastal areas as they branch close to the ground and have thick leathery phyllodes which are able to withstand the wind; they can be planted as a hedge plant. Also suitable for inland planting. Moderate growth rate.

Author: Not yet available

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