Acacia trinervata

Acacia trinervata, the three-veined wattle,[4] is a species of flowering plant belonging to the genus Acacia and the subgenus Phyllodineae in the legume family Fabaceae.[5]

Acacia trinervata
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Clade: Mimosoideae
Genus: Acacia
Species:
A. trinervata
Binomial name
Acacia trinervata
Synonyms[3]

Acacia cunninghamii Sweet
Acacia elongata var. angustifolia (Benth.) Maiden
Acacia trinervata var. angustifolia Benth.
Acacia trinervata var. brevifolia Benth.
Racosperma trinervatum (Sieber ex DC.) Pedley

Description

It is an erect or spreading shrub growing to a height of 1.5–3 m (4.9–9.8 ft). Its branchlets are smooth and angle towards the apices. The phyllodes are very narrowly elliptic to linear with a pointed sharp tip, and 1.5–5 cm by 1–3 mm wide. The 2 or 3 longitudinal veins are prominent. There is an inconspicuous gland 0–3 mm above the base, and the pulvinus is less than 1 mm long.

The inflorescences are simple, occurring singly in the phyllode axils on peduncles about 10–20 mm long. The 20 to 30 bright yellow flowers are 5 to 7.5 mm in diameter. The pods show slight raising over the seeds and are 6–12 cm by 1–3 mm wide. They are papery to thinly leathery, and sometimes minutely hairy. The seeds are longitudinal with the funicle folded 3 or 4 times.[4]

Distribution

Acacia trinervata is endemic to New South Wales, and restricted to western Sydney and the lower Blue Mountains.[5]

Taxonomy

The species was first described in 1825 by Franz Sieber,[1][2] and the specific epithet trinervata derives from the Latin for "three veined".[4]

References
  1. "Acacia trinervata". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. Candolle, A.P. de in Candolle, A.P. de (ed.) (1825) Leguminosae. Prodromus Systematis Naturalis Regni Vegetabilis 2: 451. Retrieved 8 September 2019.
  3. "Acacia trinervata Sieber ex DC. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2019-09-08.
  4. "PlantNet:Acacia trinervata". Royal Botanic Garden Sydney. Retrieved 8 September 2019.
  5. "Acacia trinervata". World Wide Wattle. Western Australian Herbarium. Retrieved 8 September 2019.
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