Acacia hemignosta F.Muell.

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Tree or sometimes shrub 3–10 m high. Bark normally rough and ±corky. Branchlets sometimes pendulous, brittle, sometimes pruinose, glabrous. Phyllodes oblanceolate to narrowly oblanceolate, occasionally ±linear, straight to shallowly recurved, 6–15 cm long, usually 10–30 mm wide, normally obtuse, green, yellowish green, grey-green or glaucous, glabrous, with 3 distant main veins and numerous anastamoses forming a close, submerged, net-like reticulum in between. Inflorescences racemose, sometimes in panicles; raceme axes 3–17 cm long, glabrous; peduncles 4–12 mm long, 1-several per node; heads globular, 30–50-flowered, bright golden. Flowers 5-merous; sepals free. Pods narrowly oblong, flat, raised over seed, straight, to 8 cm long, 8–12 mm wide, chartaceous, glabrous. Seeds longitudinal, oblong-elliptic to subcircular, 5.5–6.5 mm long, dull, brown (depressed areole lighter), exarillate.
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A bushy tree. It grows up to 3-8 m tall. The branches hang downwards. It spreads to 3-4 m wide. The bark is rough and grey. It is a small straggly tree and the young branches are angular. The leaves (phyllodes) are smooth, curved and broadest above the middle. The leaf is 7-10 cm long and 0.8-2.5 cm wide. It is bluish grey. Normally there are 3 clearly seen veins running along the leaf. The leaf normally has a small curved point. The flowers are yellow. They occur in stalked flower branches towards the end of branches. The flowers are balls and 0.5 cm across. The pods are stiff and papery. They are 5-9 cm long by 1-1.5 cm across. The pods are constricted between the seeds. The pods have a wing along the edge. They are light brown when ripe and contain round seeds.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 3.0 - 4.0
Mature height (meter) 3.0 - 8.0
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 in Australia from the Kimberleys to north Queensland. It is often in sandy soils in open woodland. It needs good drainage and a sunny position. It suits tropical and dry climates.
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Grows in sandy and lateritic soils in flat or undulating country, and in heavier soils close to creeks, mostly in open woodland.
Found in sandy and lateritic soils in flat or undulating country, and in heavier soils close to creeks, mostly in open woodland.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

The seeds are eaten.
Uses medicinal
Edible pods seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It is grown from seed. The seed need to be treated 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.
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 hemignosta unspecified picture

Distribution

Acacia hemignosta world distribution map, present in Australia

Conservation status

Acacia hemignosta threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:470508-1
WFO ID wfo-0000202466
COL ID 8PD6
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acacia hemignosta Racosperma hemignostum Acacia cloncurrensis