Acacia didyma A.R.Chapm. & Maslin

Species

Angiosperms > Fabales > Fabaceae > Acacia

Characteristics

Dense rounded shrub or tree, 1.5–4 m tall. Branchlets ± pruinose, glabrous. Phyllodes orbicular to widely elliptic, 2–5 cm long, 1.5–4 cm wide, obtuse, subfleshy with age, glaucous, lightly pruinose, glabrous, 2-nerved, imperfectly 3–4-nerved on broadest phyllodes; lateral nerves not prominent, anastomoses few, sometimes obscured by wrinkling; glands 2, with lowermost 1–8 mm above pulvinus, and uppermost at base of mucro. Inflorescences normally 4–12-headed racemes; raceme axes 2–4 cm long; peduncles twinned, 5–10 mm long, rather stout, glabrous; heads globular, subdense, c. 20-flowered, golden. Flowers 5 merous; sepals united into a ±truncate calyx. Pods strongly curved to openly once-coiled, to 10 cm long, 12–15 mm wide, coriaceous-crustaceous, lightly pruinose, glabrous, shallowly undulate on outer margin. Seeds longitudinal, widely oblong-elliptic, c. 4.5 mm long, shiny, dark brown to black; aril large, yellow-brown (dry).
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.5 - 4.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

Grows in sand on limestone ridges and consolidated dunes in scrub and shrubland.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-11

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 didyma world distribution map, present in Australia

Conservation status

Acacia didyma threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:961046-1
WFO ID wfo-0000201515
COL ID 8P5J
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acacia didyma Acacia didymum Racosperma didymum