Acacia semirigida Maiden & Blakely

Stony ridge wattle (en)

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Shrub or tree to c. 4 m high. Branchlets angled at extremities, dark reddish, glabrous. Phyllodes commonly ascending to erect, narrowly oblanceolate to narrowly elliptic or almost linear, straight to shallowly incurved, mostly 4–8 cm long and 4–8 mm wide, thin to moderately coriaceous, glabrous, with distinct midrib and marginal veins; lateral veins absent or few and obscure; glands prominent and normally exserted, usually 2 or 3, with lowermost 5–20 mm above pulvinus. Inflorescences racemose; raceme axes 2–5 cm long, glabrous; peduncles 3–6 mm long, glabrous; heads globular, small, 15–25-flowered, pale yellow; bracteole laminae subcircular. Flowers 5-merous; sepals united. Pods straight-edged or slightly constricted between seeds, to 12 cm long, 8–10 mm wide, thinly coriaceous, dark brown or reddish brown, glabrous, slightly shiny. Seeds longitudinal, narrowly oblong to slightly elliptic, 7–8 mm long, slightly shiny, black, minutely pitted; aril clavate.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
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

Grows usually on shallow soil over sandstone in open forest.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

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 semirigida world distribution map, present in Australia

Conservation status

Acacia semirigida threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:471433-1
WFO ID wfo-0000201258
COL ID 8Q28
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acacia semirigida Racosperma semirigidum