Acacia implexa—Hickory Wattle, Lightwood—FABACEAE

Acacia implexa

Link to Images on Flickr.

Habitat—Widespread, often on the margins of Warm-temperate, Dry and Littoral Rainforest.

Distribution— North from the Snowy River in the East Gippsland district of Victoria to Queensland

Description— Tall shrub to erect or spreading tree, 5 to 12 m high, often suckers freely; bark hard, smooth becoming corrugated or fissured at base, greyish or brownish; branchlets terete or rarely angled, glabrous, commonly lightly pruinose.

Local occurrences

Bulahdelah State Forest, Myall Lakes National Park and Royal Botanic Gardens Sydney

Phyllodes.— Simple, alternate, entire, flowers in globose heads. Narrowly elliptic to very narrowly elliptic, subfalcate or falcate, 7 to 18 cm long, 6 to 25 mm wide, glabrous, 3 to 7 longitudinal veins prominent, numerous longitudinally anastomosing minor veins between, apex acute or subacute with a mucro; 1 inconspicuous gland at base; pulvinus 1 to 5 mm long.

Acacia implexa
Acacia implexa

Inflorescence.— 4 to 8 in an axillary raceme; axis usually 2 to 6 cm long; peduncles 6 to 13 mm long, finely hairy; heads globose, 30 to 50-flowered, 5 to 10 mm diam., pale yellow to ± white.

Flowering.—Summer to Autumn

Fruit.—Pods curved to twisted or coiled, raised over seeds, barely to slightly or variably more deeply constricted between seeds, 6 to 20 cm long, 4 to 7 mm wide, firmly papery to leathery, ± smooth, glabrous, often slightly pruinose; seeds longitudinal; funicle whitish, folded below seed.

Ripe.—Late Summer to Autumn

Acacia implexa