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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 nervosa
Name

Acacia nervosa DC.
Synonyms

Racosperma nervosum (DC.) Pedley

Distribution
Native distribution areas:
Acacia nervosa

Continental: Australasia
Regional: Australia
Western Australia

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

De Candolle, A.P. 1825. Prodromus systematis naturalis regni vegetabilis, sive enumeratio contracta ordinum, generum, specierumque plantarum huc usque cognitarum, juxta methodi naturalis normas digesta. Pars 2: Sistens Calyciflorarum ordines X. 644 pp. Treuttel et Würtz, Parisiis [Paris]. BHL Reference page. : 2:449.

Links

Govaerts, R. et al. 2020. Acacia nervosa in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 10. Reference page.
International Plant Names Index. 2019. Acacia nervosa. Published online. Accessed: Aug 10 2019.
Tropicos.org 2019. Acacia nervosa. Missouri Botanical Garden. Published online. Accessed: 10 Aug 2019.
Catalogue of Life: 2021 Annual Checklist
Acacia nervosa – Taxon details on World Wide Wattle.
USDA, ARS, Germplasm Resources Information Network. Acacia nervosa in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Rib Wattle

Acacia nervosa, commonly known as rib wattle[1][2] ribbed wattle[3] or perfumed wattle,[2] is a shrub belonging to the genus Acacia and the subgenus Phyllodineae.

Description

The erect or sprawling shrub typically grows to a height of 0.2 to 0.5 metres (0.7 to 1.6 ft). It blooms from June to October and produces yellow flowers.[1] The shrub can be either single or multi-stemmed, sprouting from a woody root-stock. The branchlets are pruinose and prominently ribbed. The pungent, greyish green phyllodes are slightly inequilateral with a narrowly elliptic to straight or shallowly incurved shape. Phyllodes are 1 to 5 centimetres (0.4 to 2.0 in) in length with a width of 4 to 12 millimetres (0.157 to 0.472 in) long. The inflorescences are two to four headed. The prolific, showy, globular heads contain 7 to 12 loosely grouped bright golden flowers. The woody dark brown seed pods that follow have a twisted narrowly oblong shape. The pods are up to 5 cm (2.0 in) long and 8 to 9 mm (0.315 to 0.354 in) wide with thick margins. The oblong to circular seeds found in the pod are shiny, greyish brown and 3 to 4 mm (0.118 to 0.157 in) long.[4]
Taxonomy

The species was first formally described by the botanist Augustin Pyramus de Candolle in 1825 as part of the work Leguminosae. Prodromus Systematis Naturalis Regni Vegetabilis.[5] The type specimen was collected in 1801 in Geographe Bay by Louis de Freycinet, a member of the Nicolas Baudin expedition.[4]

The only synonym for the species is Racosperma nervosum as described by Leslie Pedley.[5]

The species belongs to the Acacia myrtifolia group along with other dwarf members including Acacia obovata and Acacia pygmaea.[4][6]
Distribution

It is native to an area in the Great Southern, South West and Peel regions of Western Australia where it grows in gravelly clay or sandy lateritic soils.[1] It occurs in a block as far north as Mogumber and along the coast south to Cape Naturaliste then east along the coast as far as Albany. Some outlying populations are found in Tammin, Katanning and Mount Barker. It is often found near watercourses or as a part of Eucalyptus woodland or forest communities.[4]
Cultivation

The shrub is available commercially in seed form or as a seedling. The hardy plant is dieback resistant.[7] Seeds have to be pretreated with hot water prior to planting.[2] and the seed will take about four weeks to germinate.[8]
See also

List of Acacia species

References

"Acacia nervosa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia nervosa". Nindethana Australian Seeds. Retrieved 20 August 2018.
Cliff and Sharon Burns. "Darlington and surrounds local flora and bushlands" (PDF). Shire of Mundaring. Archived from the original (PDF) on 5 March 2017. Retrieved 20 August 2018.
"Acacia nervosa". World Wide Wattle. Western Australian Herbarium. Retrieved 20 August 2018.
"Acacia nervosa DC". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 20 August 2018.
A. E. Orchard; Annette J. G. Wilson (2001). Flora of Australia. Volume 11A, Mimosaceae, Acacia. CSIRO publishing. p. 445. ISBN 9780643067172.
"Acacia nervosa Rib Wattle". Apace WA. Retrieved 20 August 2018.
Luke Sweedman; David Merritt (2006). Australian Seeds: A Guide to Their Collection, Identification and Biology. CSIRO publishing. ISBN 9780643098602.

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