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Acacia retivenea F.Muell.

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Erect open shrub 1-3 m high. Branchlets crispate-villous or tomentose, rarely glabrous. Stipules 2-5.5 mm long. Phyllodes ±inequilaterally elliptic to widely elliptic, ovate or subrotund, 3.5-12 cm long, 2.5-6 cm wide, with shallowly crenate upper margin, rounded-obtuse to retuse, usually crispate-villous or tomentose, with 3 or 4 distant strongly raised main nerves, prominently and closely reticulate. Inflorescences mostly simple and initiated synchronously with phyllodes on new shoots to form 'false' terminal racemes, 1 per axil; peduncles 17-40 mm long, crispate-villous to tomentose; heads globular, 10 mm diam., densely 71-105-flowered, golden; bracteoles exserted or not. Flowers 5-merous; sepals 1/2-3/4-united. Pods straight or one margin curved, ±flat, 2.5-6.2 cm long, 1-2 cm wide, ±coriaceous or hard-crustaceous, densely hairy or subglabrous at maturity. Seeds transverse, broadly elliptic to oblong, 4.8-6 mm long, brown-black; aril apical.
More
A medium to tall shrub. It is straggly and grows 2-4 m high. It spreads 1-3 m across. The shoots are covered with white woolly hairs. The leaves (phyllodes) are 3-5 cm long by 2-3 cm wide. The leaves are nearly round or with the widest part above the middle. They have a blunt end and are thick and soft. They are bright green and hairy with 4 prominent veins. The flower heads are balls and dark yellow. Many flower heads occur and they are on short thick woolly flower stalks. They occur in clusters on the ends of branches. The pods are 3-5 cm across by 1-1.5 cm wide. They are flat and woody. They have a netted appearance and are hairy. The pods mature August to October.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 1.0 - 3.0
Mature height (meter) 1.5 - 3.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

It grows in inland Australia. It grows on gravely soils. It suits warmer regions. It needs a well drained soil and sunny position.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

A grub which grows in the roots is edible.
Uses -
Edible seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It is grown from seed.
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 -

Distribution

Acacia retivenea world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:471314-1
WFO ID wfo-0000202473
COL ID 64C3K
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acacia retivenea Acacia retivenea subsp. retivenea Racosperma retiveneum
WorldFloraDB 2024