Acacia excentrica

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 excentrica
Name

Acacia excentrica Maiden & Blakely, 1927
Synonyms

Racosperma excentricum (Maiden & Blakely) Pedley

Distribution
Native distribution areas:
Acacia excentrica

Continental: Australasia
Regional: Australia
Western Australia

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

Maiden, J.H. & Blakely, W.F., 1927. J. Roy. Soc. Western Australia 13: 4.

Links

Govaerts, R. et al. 2020. Acacia excentrica in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Aug 02. Reference page.
International Plant Names Index. 2019. Acacia excentrica. Published online. Accessed: Aug 02 2019.
Tropicos.org 2019. Acacia excentrica. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Aug 02.
Hassler, M. Aug. Acacia excentrica. 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 on the internet. Accessed: Aug 02 {{{3}}}. Reference page.

Vernacular names

Acacia excentrica is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to Western Australia.

Description

The prostrate, domed or spreading prickly shrub typically grows to a height of 0.1 to 0.5 metres (0 to 2 ft). The stipules are 1 to 2 mm (0.039 to 0.079 in) in length. It has green phyllodes with a narrowly elliptic to oblong-elliptic and sometimes lanceolate shape. Each slightly asymmetric phyllode is 1 to 2 cm (0.39 to 0.79 in) in length and 2 to 5 mm (0.079 to 0.197 in) wide and is sharply pungent.[1] It produces yellow flowers from July to October.[2] Each simple inflorescence has one or two headed racemes with a length of 0.5 to 1 mm (0.020 to 0.039 in). The spherical flower heads have a diameter of 4 to 4.5 mm (0.16 to 0.18 in) and contain 20 to 30 golden yellow flowers. Seed pods form later that are linear with one or two coils.[1]
Taxonomy

The species was first formally described by the botanists Joseph Maiden and William Blakely in 1928 as part of the work Descriptions of fifty new species and six varieties of western and northern Australian Acacias, and notes on four other species as published in the Journal of the Royal Society of Western Australia. In 2003 it was reclassified as Racosperma excentricum by Leslie Pedley but transferred back into the genus Acacia in 2006.[3]
Distribution

It has a scattered and disjunct distribution to an area in the Goldfields-Esperance, Wheatbelt and Great Southern regions of Western Australia between Albany in the west, Kondinin in the north and Cocklebiddy in the east. It is found on the plains where it grows in loamy or sandy clay soils over limestone.[2]
See also

List of Acacia species

References

"Acacia excentrica Maiden & Blakely". Wattle - Acacias of Australia. Department of the Environment and Energy. Retrieved 13 January 2019.
"Acacia excentrica". FloraBase. Western Australian Government Department of Parks and Wildlife.
"Acacia excentrica Maiden & Blakely". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 13 January 2019.