Citation: J. Adelaide Bot. Gard. 2:167-169 (1980).

Derivation: The name commemorating D. E. Symon, South Australian botanist, who made the first collection of this species.

Synonymy: Not Applicable

Common name: None

Description:
Tall shrubs or small trees 3-4 m high with a single trunk or several stems from ground level; branchlets terete, apically resinous-ribbed with sparse appressed pubescence between them, reddish-brown, grey with age.

Phyllodes linear, tapering slightly each end, 8-14 cm long, 1.5-3 mm wide, straight or slightly curved, not rigid, viscid when young, glabrous to sparsely and minutely pubescent, apices delicately hooked, central vein more prominent, lateral veins 3-5, margins resinous; gland basal 1-2 mm above pulvinus.

Inflorescence simple, axillary, solitary; spikes interrupted, yellow, 15 mm long; peduncles 3-4 mm long. Flowers 5-partite.

Legumes linear 345 cm long, 2 mm broad, straight or slightly curved, acute at both ends, flat but raised over seeds slightly constricted between seeds, light brown. Seeds longitudinal oblongoid, light brown, shiny, 3 mm long, 1.5 mm broad; funicle short, folded once or twice and thickened into a whitish aril.

Distribution:  In South Australia known only from the North-Western region in the Everard Ranges and from Mt Lindsay in the Birksgate Range amongst granitic rocks. S.Aust.: NW. Flowering time: There are still only a few collections of this species. It has been collected in flower in May, August and December and in pod in W.Aust. in September.

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

Biology: No text

Related taxa: Possibly most closely related to A. longissima which occurs in Qld and N.S.W. and which has a prominent non resinous central and less prominent lateral veins, longer spikes, and 4-partite flowers.

Author: Not yet available

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