Acacia spectabilis A.Cunn. ex Benth.

Glory wattle (en)

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Shrub or tree 2–4 (–6) m high. Bark smooth, blue-grey, grey or whitish. Branchlets ± terete, shortly hirsute to glabrous; ridges not prominent. Young foliage-tips velvety cream-coloured to glabrous whitish green or sometimes glaucous purple. Leaves subcoriaceous, blue-green, glaucous; petiole (0.1–) 0.5–1.2 cm long, terete, often with an obscure gland at or near apex, glabrous or hairy; rachis (1–) 2–7 (–8.5) cm long, mostly eglandular, rarely with an orbicular glabrous dark gland at the insertion of apical pinnae, glabrous or hairy; pinnae 2–6 (–7) pairs, (0.5–) 1–3.5 cm long, narrowing towards base; pinnules (2–) 4–8 pairs, narrowly obovate or oblong, (5–) 7–16 mm long, 2.5–6 (–7) mm wide, glabrous, obscurely 2-or 3-veined, with apex broadly rounded or emarginate, mostly wider than the unequally-sided base. Inflorescences in very elongated axillary racemes, or terminal or axillary false-panicles. Heads 12-20-flowered, golden. Pods ± straight-sided, 4–10 (–17) cm long, (8–) 10–15 (–19) mm wide, thinly coriaceous, purplish or bluish brown, black or dark brown, usually pruinose, glabrous.
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Unarmed shrub to c. 5 m high. Branchlets glaucous, with ± dense indumentum of spreading hairs up to 0.2 mm, glabrescent. Leaves bipinnate, with indumentum as the branchlets; petiole 0.6-1.8 cm, one gland just below the junction of the proximal pur of pinnae; rachis 2-7(-9.5) cm, glandless; pinnae 3-5(-7) pairs, 1-3 cm, leaflets opposite, sessile, 4-6(-8) pairs, oblong-obovate, obtuse, 6-11 (-13) by 2.5-5 mm, getting progressively larger along pinnae and terminal ones sometimes brbadest near the apex, glabrous. Inflorescences composed of flower-heads of 15-20 flowers, aggregated into long axillary racemes or rarely in terminal panicles. Pod linear, flat, convex over the seieds, glaucous, glabrous, to 11 by 1.2-1.5 cm. Seeds longitudinal, c. 6 by 3.5 mm, pleurogram constricted at the hilar end, but open; funicle expanded into a cupular aril.
An evergreen shrub. It grows 5 m tall and spreads 2 m wide. The stem is erect and tall and fragile. The branches are nearly round in cross section. They are often bent and twisted. The leaves (phyllodes) are greyish-green and like a feather. They have 2 to 4 divisions of the leaves. Each division has 4 to 8 oval leaflets. The flowers are bright yellow balls. They occur as many flowers in a cluster. This makes it a very ornamental wattle. The pods are 5-10 cm long by 1-1.5 cm across. They are brown.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 2.0
Mature height (meter) 5.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

It occurs naturally in New South Wales and Queensland in Australia. (It occurs in the climatic range of 50-75 mm rainfall and the summer hot of 18°C and about 20 frosts in winter.) It prefers medium to heavy soils. It requires an open sunny position. It is drought and frost resistant. It cannot stand poor drainage. It suits hardiness zones 9-11.
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Grows in open forest, woodland or heath, often associated with Callitris spp., in sandy or gravelly soils, on sandstone, granite or laterite.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

The flowers are stripped from their stems and roasted and eaten. They can be steeped in brandy and sugar, coated with batter and deep fried.
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Often cultivated as an ornamental tree or shrub which is moderately frost resistant.
Uses ornamental
Edible flowers
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It is grown from seed. The seed need treatment to break the hard seed coat. Normally this is by putting the seeds in very hot water and letting the water cool down overnight then planting the seeds immediately. It can be grown from cuttings but they are fairly difficult to start to grow.
Mode cuttings seedlings
Germination duration (days) 21
Germination temperacture (C°) 21 - 26
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Acacia spectabilis unspecified picture

Distribution

Acacia spectabilis world distribution map, present in Australia

Conservation status

Acacia spectabilis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:471513-1
WFO ID wfo-0000200977
COL ID 8Q3J
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acacia spectabilis Racosperma spectabile Acacia chrysobotrya