Acacia acuminata Benth.

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Obconic shrub or tree  (2–) 3–7 (–10) m high. New shoots with silky, yellow, appressed hairs. Branchlets ascending to erect, infrequently ± pendulous, glabrous. Phyllodes ascending to erect or spreading at various angles, linear to narrowly elliptic, flat, normally straight to shallowly curved, (5–) 8–15 (–18) cm long, (1.5–) 2–8 (–10) mm wide, tapered to a curved-acuminate to caudate, non-pungent, slender apex, bright green, glabrous except fimbriolate in upper c. ½, finely multistriate; midvein often the most prominent. Inflorescences simple, normally 1 or 2 in phyllode axils; spikes sessile, (7–) 10–30 mm long (dry), golden. Flowers mostly 4-merous; calyx dissected by ½ or more, with lobes usually narrow. Pods linear, flat but variably raised over seeds and straight-edged to constricted between them, (2–) 3–8 cm long, 2.5–7 mm wide, firmly chartaceous to thinly coriaceous-crustaceous, brown, clothed with sparse minute caducous hairs. Seeds longitudinal, oblong or elliptic to ovate, 2–4.5 mm long, 1.5–3 mm wide, compressed (1–2.5 mm thick), dark brown to black, shiny to slightly shiny; aril membranous, white or creamy white.
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An evergreen tree. It grows to 6-12 m high and 4 m across. It normally has a short main stem and then branches spread out giving it a broad crown. The stem is stiff and smooth with grey bark. The timber has the smell of raspberry jam after cutting. The wood is hard and suitable for fencing. The leaves (phyllodes) are bright green and very thin. The are almost round in cross section and 0.25 cm wide. They are 7.5-25 cm long and with a pointed tip. New growth is covered with golden hairs. The flowers are bright yellow. The flowers rods are 13-25 mm long and 6-7 mm wide. They are produced near the ends of branches. The pods are brown, flat and narrow. They can be 5-7.5 cm long and straight. They are 5-8 mm wide. The seeds are dark brown and shiny. They are 3-6 mm long by 2-4 mm wide.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 7.0 - 10.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

A temperate plant. It prefers light well drained soils. It does best in sunny positions. It can withstand drought and frost. It grows naturally in semi-arid woodlands in Western Australia. It can grow in arid places. It can grow on limestone soils. They can be alkaline. It grows in areas with an annual rainfall between 200-1,100 mm. It grows below 375 m above sea level.
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Often in gently undulating topography, growing in lateritic gravels or red-brown earths in low semi-arid woodlands and tall shrublands, and in clayey soils on flats and in red sands, often near intermittent streams.
Often in gently undulating topography, on lateritic gravels or red-brown earths in low semi-arid woodlands and tall shrublands, and in clayey soils on flats and in red sands, often near intermittent streams.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-10

Usage

The gum is edible. Ripe seeds are also cooked and eaten. The gum can be mixed with water and stored to be used like honey.
Uses charcoal environmental use food fuel gum material medicinal ornamental timber wood
Edible gums seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It is grown from seed. Seed needs to be treated first to enable it to grow. 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°) 17 - 28
Size -
Vigor -
Productivity -

Images

Acacia acuminata unspecified picture

Distribution

Acacia acuminata world distribution map, present in Australia

Conservation status

Acacia acuminata threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:469642-1
WFO ID wfo-0000185281
COL ID 8NQF
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acacia acuminata Acacia acuminata var. glaucescens Acacia acuminata subsp. acuminata Acacia acuminata var. ciliata

Lower taxons

Acacia acuminata subsp. burkitii