Acacia dunnii

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Caesalpinioideae
Tribus: Acacieae
Genus: Acacia
Species: Acacia dunnii
Name

Acacia dunnii (Maiden) Turrill, 1922
Synonyms

Acacia sericata var. dunnii Maiden
Racosperma dunnii (Turrill) Pedley

Distribution
Native distribution areas:
Acacia dunnii

Continental: Australasia
Regional: Australia
Northern Territory, Western Australia

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Turrill, W.B., 1922. Bulletin of Miscellaneous Information, Royal Gardens, Kew. Kew 1922:299.

Links

Govaerts, R. et al. 2020. Acacia dunnii in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 01. Reference page.
International Plant Names Index. 2019. Acacia dunnii. Published online. Accessed: Aug 011 2019.
Tropicos.org 2019. Acacia dunnii. Missouri Botanical Garden. Published online. Accessed: 01 Aug 2019.
Hassler, M. Aug. Acacia dunnii. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. Aug. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: Aug 01 {{{3}}}. Reference page.
USDA, ARS, Germplasm Resources Information Network. Acacia dunnii in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Dunn's Wattle, Elephant-ear Wattle

Acacia dunnii, commonly known as elephant ear wattle[3] or Dunn's wattle,[4] is a shrub or tree of the genus Acacia and the subgenus Plurinerves.

Names

Its specific epithet, dunnii, is to honour Edward Dunn, government geologist for Victoria (1904–1912).[5] Aboriginal names for it are: (in) Jaminjung, Ngaliwurru, Nungali: Bawaya (Jam, Ngal); (in) Ngarinyman: Barrawi.[3]
Description

This small shrub or tree flowers and fruits in all months of the year.[3] The erect, slender shrub or tree typically grows to a height of 1.5 to 6 metres (5 to 20 ft)[6] and a width of 2 to 4 metres (7 to 13 ft).[7] It blooms from January to June and produces yellow flowers.[6] A. dunnii generally has only a single stem. The silvery blue phyllodes are 20 to 45 centimetres (8 to 18 in) long and 6 to 16 cm (2 to 6 in) wide and hang vertically from branches.[7] It has terminal inflorescences with an axis that is 21 to 27 cm (8 to 11 in) long. The yellow flower Heads are globular with a diameter of 8 to 15 millimetres (0.3 to 0.6 in).[3] After flowering brown woody seed pods form. The pods have a flat linear to oblong shape and can be slightly curved with a length of 6 to 14.5 cm (2 to 6 in) and a width of 2.4 to 3 cm (0.9 to 1.2 in).[3]
Taxonomy

The species was formally described by the botanist William Bertram Turrill in 1922 in the work Dunn's Wattle as published in the Bulletin of Miscellaneous Information. Synonyms for the plant include Racosperma dunnii as described by Leslie Pedley and Acacia sericata var. dunnii by Joseph Maiden.[4]
Distribution

It is native to an area in the Northern Territory and the Kimberley region of Western Australia.[6] Despite records for Queensland,[8] the Commonwealth Heads of Australian Herbaria consider A dunnii not to be native to Queensland, but to have become naturalised.[9] It grows on shallow skeletal sandy soils, over sandstone or quartzite[3][5] Often found on ridges, stony hills and amongst rocks and rocky outcrops.[6]
See also

List of Acacia species

References

Govaerts, R. et al. 2018. "Plants of the World online: Acacia dunnii". Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 29 May 2018.
Turrill, W.B. 1922. Dunn's Wattle. Bulletin of Miscellaneous Information, Royal Gardens, Kew (9) 299
"NT Flora Northern Territory flora online factsheet: Acacia dunnii (Maiden) Turrill". Retrieved 31 May 2018.
"Acacia dunnii Turrill". Global Biodiversity Information Facility. Retrieved 21 August 2018.
Moore, P. 2005. A guide to plants of Inland Australia, Reed New Holland, Sydney, Australia ISBN 9781876334864
"Acacia dunnii". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Elephant Ear Wattle Acacia dunnii" (PDF). Native plant notes. Kings Park and Botanic Gardens. Retrieved 21 August 2018.
"AVH mapview: Acacia dunnii". Australasian Virtual Herbarium. Retrieved 29 May 2018.
"APNI: Acacia dunnii". Australian Plant Name Index. Retrieved 29 May 2018.