Acacia williamsonii Court

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Bushy shrub to 2 m high. Branchlets glabrous. Phyllodes narrowly linear, normally shallowly incurved, 4–9 cm long, usually 1.5-3 mm wide, narrowed at base, not rigid, glaucous and inclined to ascending, often green or subglaucous and patent at ends of flowering branchlets, glabrous; midrib not prominent; lateral veins absent; gland 7–27 mm above pulvinus, often absent. Inflorescences racemose; racemes usually 1–3 cm long, glabrous, normally drying dark reddish brown; peduncles 2–3 mm long, rather stout, glabrous, sometimes appressed-puberulous, drying dark reddish brown to blackish; heads globular, subdensely 15–20-flowered, bright golden; bracteole laminae ±circular, dark brown to blackish, white-fimbriolate. Flowers 5-merous; sepals c. ⅚-united. Pods normally ±moniliform, to 9 cm long, 3–3.5 mm wide, firmly chartaceous to somewhat crustaceous, black, glabrous. Seeds longitudinal, oblong to elliptic, 3.5–4 mm long, somewhat shiny, black; aril clavate.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

In the Bendigo 'Whipstick', it grows in stony gravel or clay loam, in open Eucalyptus forest and mallee open scrub.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
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 williamsonii world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:471809-1
WFO ID wfo-0000201185
COL ID 64BQX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acacia williamsonii Racosperma williamsonii Acacia ligulata var. angustifolia Acacia hakeoides var. angustifolia