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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 hispidula
Name

Acacia hispidula (Sm.) Willd., 1806
Synonyms

Mimosa hispidula Sm.
Racosperma hispidulum (Sm.) Pedley

Distribution
Native distribution areas:
Acacia hispidula

Continental: Australasia
Regional: Australia
New South Wales, Queensland

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

Willdenow, C.L. 1806. Species Plantarum. Editio quarta. Tomus 4. Pars 2. Pp. 634–1157. Impensis G. C. Nauk, Berolini [Berlin]. BHL Biblioteca Digital Reference page. : 4(2): 1054.

Additional references

James Edward Smith. 1793. A specimen of the botany of New Holland. See Acacia hispidula in Wikisources.

Links

Govaerts, R. et al. 2020. Acacia hispidula in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 04. Reference page.
International Plant Names Index. 2019. Acacia hispidula. Published online. Accessed: Aug 04 2019.
Tropicos.org 2019. Acacia hispidula. Missouri Botanical Garden. Published online. Accessed: 04 Aug 2019.
Hassler, M. Aug. Acacia hispidula. 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 04 {{{3}}}. Reference page.

Vernacular names
English: little harsh acacia, rough-leaved acacia, rough hairy wattle

Acacia hispidula, known colloquially as little harsh acacia, rough-leaved acacia or rough hairy wattle, is a species of Acacia native to eastern Australia.[1]

Description

The shrub typically grows to a height of 2 m (6 ft 7 in) has a spreading, open habit, with scabrous and tuberculate branchlets that have minute hairs.[2] It has evergreen phyllodes with an asymmetric narrowly oblong-elliptic shape that are often shallowly incurved. The sub-glabrous to glabrous phyllodes are 10 to 30 mm (0.39 to 1.18 in) in length and 3 to 10 mm (0.12 to 0.39 in) and have a prominent midrib. It flowers between January and April producing[1] simple inflorescences occur singly in the axils and have spherical flower-heads containing 10 to 20 pale yellow to almost white flowers. The glabrous blackish seed pods that form after flowering have an oblong to narrowly oblong shape but can be elliptic when containing a single seed. The pods can be up to 4.5 cm (1.8 in) in length and 7.5 to 10.5 mm (0.30 to 0.41 in) in width and are thickly coriaceous to subwoody. The turgid seeds have an oblong shape and are 7.5 to 8.5 mm (0.30 to 0.33 in) in length and 4.5 mm (0.18 in) wide.[2]
Taxonomy

The species was first formally described by the botanist James Edward Smith in 1795 as Mimosa hispidula in the work A Specimen of the Botany of New Holland . It was then described as Acacia hispidula by Carl Ludwig Willdenow in 1806 as part of the work Species Plantarum. It was reclassified as Racosperma hispidulum by Leslie Pedley in 2003 then transferred back to genus Acacia in 2006.[3] The shrub is mistaken for Acacia aspera which has longer and narrower phyllodes. It is closely allied with Acacia purpureopetala which is also found in Queensland.[1] The specific epithet is derived from Latin and is in reference to the hairy nature of the branchlets and phyllode margins having short hairs or tubercles.[1]
Distribution

It has a disjunct distribution and is found around the Sydney area in New South Wales and further north from Coffs Harbour and inland to Torrington to the border with Queensland from the north as far as Crows Nest and Brisbane where it is a part of Eucalyptus woodland communities growing in shallow soils over granite and sandstone.[2]
See also

List of Acacia species

References

Harden GJ (1990). "Acacia hispidula (Sm.) Willd". Plantnet – New South Wales Flora Online. Royal Botanic Gardens, Sydney. Retrieved 17 July 2014.
"Acacia hispidula". World Wide Wattle. Western Australian Herbarium. Retrieved 9 August 2019.
"Acacia hispidula (Sm.) Willd". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 10 August 2019.

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