Acacia bivenosa Dc.

Two-nerved wattle (en)

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Shrub normally 1–3 m high, rarely prostrate, usually dense and glabrous. Bark smooth and light grey to medium grey. Branchlets often slightly pruinose. Phyllodes variable, usually narrowly elliptic to oblong-elliptic or obovate, usually 2–5 cm long and 6–25 mm wide with l: w ratio = 2–5, with incurved to straight mucro, thin to subfleshy, green or glaucous, usually 2‑veined per face; glands commonly 3, with lowermost prominent and 2–12 mm above pulvinus, and distal glands smaller with one commonly adjacent to mucro. Inflorescences 6-or 7-headed racemes, mostly growing out with subsequent inflorescences simple; raceme axes 2–4 cm long; peduncles (10–) 15–35 (–45) mm long; heads globular, subdense, normally 16–23-flowered, deep golden; buds bright green. Flowers 5-merous; sepals united into a ± truncate calyx. Pods ±erect and submoniliform (breaking readily at constrictions between seeds), to 8 cm long, 5–8 (–10) mm wide, firmly crustaceous to subwoody, light brown. Seeds longitudinal, oblong-elliptic, 4–6 mm long, glossy, dark brown; aril red or orange.
More
An evergreen spreading shrub. It grows to 3-4 m high and spreads to 2-5 m across. The stems are erect and branching. The small branches are covered with a bluish bloom. The leaves (phyllodes) are long and taper to a curved tip. They can be 3-8 cm long. At the broadest end they are 1.5 cm wide. The flowers are yellowish orange balls. Flowers are common on the last 20-30 cm of the small branches. The pods are brown and 7-8 cm long. They are narrow (0.9 cm), flat and leathery.
Life form perennial
Growth form
Growth support free-standing
Foliage retention
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 2.0 - 5.0
Mature height (meter) 2.0 - 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

Grows in a variety of soils, including coastal sand, and on rocky hillsides and gullies, in shrubland, open shrubland and open woodland, often associated with spinifex.
More
A temperate plant. It grows in alkaline well drained sands. It prefers open sunny positions. It is drought and frost resistant.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

The seeds have been eaten raw.
Uses environmental use food material medicinal
Edible seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It can be grown from seed. The seed need to have the hard seed coat broken. Normally this is by putting the seeds in very hot water and letting the water cool down overnight then planting the seeds immediately.
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

Acacia bivenosa unspecified picture

Distribution

Acacia bivenosa world distribution map, present in Australia and India

Identifiers

LSID urn:lsid:ipni.org:names:469848-1
WFO ID wfo-0000185295
COL ID 8NVS
BDTFX ID -
INPN ID 447334
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acacia elliptica Acacia bivenosa Acacia binervosa Racosperma bivenosum Acacia bivenosa var. borealis