Acacia falcata Willd.

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Slender shrub or tree 2–5 m high. Branchlets acutely angled at extremities, red-brown, commonly lightly pruinose, glabrous. Phyllodes falcate, broadest above middle, much-narrowed at base, 7–19 cm long, 1–4 cm wide, thin, grey-green to glaucous, sometimes green, glabrous, with excentric midrib, obscurely penniveined; gland not prominent, 0–5 mm above pulvinus; pulvinus c. 5 mm long. Inflorescences 9–22-headed racemes; raceme axes normally 2–6 cm long, sparsely to moderately ± appressed-puberulous, with hairs white or light golden and sometimes absent in fruit; peduncles 3–4 mm long, with indumentum as on raceme axes; heads globular, 15–20-flowered, creamy white. Flowers 5-merous; sepals ± free. Pods linear, to 12 cm long, 5–8 mm wide, firmly chartaceous, blackish, often lightly pruinose, glabrous. Seeds longitudinal, oblong to ovate-elliptic, 3.5–4.5 mm long, somewhat shiny, black; funicle encircling seed in a single fold, light brown; aril clavate.
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Unarmed, erect shrub or tree up to 4 m high. Branchlets with not very prominent yellowish rib. Phyllodes falcate, glabrous with prominent main vein and margins, reticulately penninerved, acute or obtuse, broadest above the middle, very attenuate at the base, (9.5-)12-19 by 1.2-4 cm, 4.5-12 times as long as broad, with a slit-like gland at the base, pulvinus c. 5 mm. Inflorescences consisting of heads of 15-20 yellow flowers in axillary racemes. Pods linear, ± flat, with nerve-like margin and transverse reticulate veins, to c. 10 by 0.5-0.7 cm. Seeds 2-2.2 by 0.8-1 mm, pleurogram closed, funicle running round the top of the seed to the base, then folded back and thickened to form a clavate aril on one side at the base.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 4.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

A common element of the understorey of Eucalyptus communities, often in shallow stony soil.
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A common element of the understorey of Eucalyptus communities, often in shallow stony soil.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses environmental use material medicinal poison tanning vertebrate poison wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings. Seeds needs soaking.
Mode 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

Leaf

Acacia falcata leaf picture by Giorgio Jetson (cc-by-sa)

Distribution

Acacia falcata world distribution map, present in Australia and New Zealand

Conservation status

Acacia falcata threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:470299-1
WFO ID wfo-0000192740
COL ID 8P8M
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acacia falcata Mimosa falcata Acacia plagiophylla Acacia obliqua Racosperma falcatum Racosperma falcatum Acacia falcata var. minor