Acacia flavescens A.Cunn. ex Benth.

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Unarmed tree to 10 m high. Branchlets angular, with moderately dense stellate hairs. Phyllodes ovate, falcate, acute, usually long-tapering, 9-24 by (l-)2-4(-5.5) cm, 3-6(-9.5) times as long as wide, with 3 prominent longitudinal veins, the upper two ending at the margin at an indentation, usually associated with a gland, the adaxial one ending at the apex, nerves finely transversely reticulate; basal gland prominent with distinct rim and elongate orifice, 2 mm, and in addition 3 or more smaller but conspicuous glands in indentations along upper margin, pulvinus rather long. Flowering heads of (30-)40-50 flowers, grouped in terminal or sometimes compound panicles, up to 30 cm wide, densely yellowish hairy. Flowers yellow, pentamerous, bisexual. Pod flat, slightly winged, shining, with transverse veins and scattered hairs when young, 6-12 by 1.5-2 cm. Seeds transverse, c. 6 by 4 mm, pleurogram large, open; funicle ribbon-like, folded and finally expanded into cupular aril.
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Tree 4–20 m high. Bark rough, furrowed and somewhat shaggy. Branchlets stellate-hairy; hairs golden on new shoots. Phyllodes inequilaterally narrowly elliptic to lanceolate, ± falcate, 9–30 cm long, 2–6 cm wide, acuminate (except young plants), ± glabrous, with 3 prominent main veins (only the lowermost reaching apex) and obviously reticulate in between; basal gland elongated, with 3 or 4 additional smaller glands in indentations or occasionally on short projections along upper margin. Inflorescences in axillary racemes or terminal panicles, sometimes leafy; raceme axes 2–10 cm long, golden stellate-puberulous; peduncles 6–28 mm long, 1 to several per node, yellowish stellate-puberulous; heads globular, 4.5–6 mm diam., 30–60-flowered, cream-coloured. Flowers 5-merous; sepals ⅔–¾-united. Pods flat, to 12 cm long, 1.5–2.5 cm wide, thinly coriaceous, transversely reticulate, glabrous. Seeds transverse, elliptic, 6–7 mm long, dull, black, arillate.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 8.0 - 10.0
Root system -
Rooting depth (meter) 1.5
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

Coastal lowlands. Mainly found on the gently undulating coastal plain, but also extends to the slopes of the coastal ranges and tablelands; at elevations up to 1,000 metres.
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Grows in sand, in eucalypt forest and woodland.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

"Fast growing, coppices well, and has been used as a fodder crop for cattle. The bark contains 10–26 % tannin and the hard, close-grained wood makes good firewood." (Beasley 2009: 30).
Uses dye erosion control fodder medicinal wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs soaking.
Mode cuttings seedlings
Germination duration (days) 21
Germination temperacture (C°) 21 - 26
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) 22 - 34
Size -
Vigor -
Productivity -

Images

Acacia flavescens unspecified picture

Distribution

Acacia flavescens world distribution map, present in Australia and Papua New Guinea

Conservation status

Acacia flavescens threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:470337-1
WFO ID wfo-0000185305
COL ID 8P9C
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Racosperma flavescens Acacia flavescens Acacia flavescens var. nobilis Acacia flavescens var. typica