Acacia deltoidea

Acacia deltoidea is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to north western Australia.

Acacia deltoidea
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Clade: Mimosoideae
Genus: Acacia
Species:
A. deltoidea
Binomial name
Acacia deltoidea
Occurrence data from AVH

Description

The straggling shrub typically grows to a height of 1.5 to 3 metres (5 to 10 ft)[3] and has glandular-hairy branchlets with persistent subulate upcurved stipules with a length of 1.5 to 4 mm (0.059 to 0.157 in). Like most species of Acacia it has phyllodes rather than true leaves. The subsessile, imbricate phyllodes are patent to ascending with a cuneate to elliptic to triangular or broadly obdeltate shape. The leathery and glabrous phyllodes are 6 to 20 mm (0.24 to 0.79 in) in length and 4 to 7 mm (0.16 to 0.28 in) wide and have three to four distant, slightly raised main nerves.[4] It blooms from March to August and produces yellow flowers.[3]

Taxonomy

There are two recognised subspecies:

  • Acacia deltoidea subsp. ampla
  • Acacia deltoidea subsp. deltoidea

Distribution

It is native to an area in the West Kimberley region of Western Australia[3] from along the Bonaparte Archipelago and Napier Bay in the west to around the Phillips Range, Kimberley Downs Station and Beverley Springs Station in the east.[4] It is usually found growing in sandy soils over and around sandstone and quartzite.[3]

See also

References
  1. "Acacia deltoidea". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. Don, G. (1832). A General History of Dichlamydeous Plants. 2. p. 401.
  3. "Acacia deltoidea". FloraBase. Western Australian Government Department of Parks and Wildlife.
  4. "Acacia deltoidea". World Wide Wattle. Western Australian Herbarium. Retrieved 9 November 2020.
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