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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 lasiocarpa
Varietas: A. lasiocarpa var. bracteolata

Acacia lasiocarpa Benth., 1837

Racosperma lasiocarpum (Benth.) Pedley

Native distribution areas:
Acacia lasiocarpa

Continental: Australasia
Regional: Australia
Western Australia

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

Bentham, G. in S. L. Endlicher et al. 1837, Enumeratio plantarum quas in Novae Hollandiae 43.


Govaerts, R. et al. 2020. Acacia lasiocarpa in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 06. Reference page.
International Plant Names Index. 2019. Acacia lasiocarpa. Published online. Accessed: Aug 06 2019. 2019. Acacia lasiocarpa. Missouri Botanical Garden. Published online. Accessed: 06 Aug 2019.
Hassler, M. Aug. Acacia lasiocarpa. 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 06 {{{3}}}. Reference page.
USDA, ARS, Germplasm Resources Information Network. Acacia lasiocarpa in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Panjang, Pajang, glow wattle

Acacia lasiocarpa, commonly known as Panjang or Pajang[1] or glow wattle,[2] is a shrub of the genus Acacia and the subgenus Pulchellae that is endemic to Western Australia.


The shrub typically grows to a height of 0.15 to 0.5 metres (0.5 to 1.6 ft)[3] and 1 m (3 ft) across.[2] The branchlets are covered in spines. The pinnae occur in pairs and have a length of 1 to 10 millimetres (0.039 to 0.394 in) with two to eight pairs of pinnules that are 1 to 5 mm (0.039 to 0.197 in) long and 0.5 to 1 mm (0.020 to 0.039 in) wide.[4] The foliage is lime green in colour.[2] It blooms from May to October and produces yellow flowers.[3] The rudimentary inflorescences have globular flowerheads containing 16 to 50 golden flowers. Following flowering flat or undulate brown seed pods form that are 10 to 40 mm (0.4 to 1.6 in) in length and 3 to 5 mm (0.12 to 0.20 in) wide. The sometimes mottled seeds inside have an oblong to elliptic or circular shape and are 1.5 to 2.5 mm (0.06 to 0.10 in) in length.[4]

The species was first formally described by the botanist George Bentham in 1837 as part of the Bentham, Stephan Endlicher, Eduard Fenzl and Heinrich Wilhelm Schott work Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in Sinu Regis Georgii collegit Carolus liber baro de Hügel. It was reclassified as Racosperma lasiocarpum in 2003 but transferred back to the genus Acacia in 2006.[5]

There are three varieties:

Acacia lasiocarpa var. bracteolata
Acacia lasiocarpa var. lasiocarpa[6]
Acacia lasiocarpa var. sedifolia


It is native to an area in the Wheatbelt, Goldfields-Esperance and Great Southern regions of Western Australia[3] with the bulk of the population found south west of a line from Kalbarri to Esperance.[4] The plant is found in a range of habitat including in seasonally damp areas, in and around swamps, on flats and coastal dunes an can grow in a variety of soils.[3]
See also

List of Acacia species


"Noongar names for plants". Archived from the original on 2016-11-20. Retrieved 20 November 2016.
"Acacia lasiocarpa Glow wattle (prostrate form)". Lullfitz Nursery. Retrieved 23 September 2018.
"Acacia lasiocarpa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia lasiocarpa". World Wide Wattle. Western Australian Herbarium. 24 September 2018.
"Acacia lasiocarpa Benth". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 24 September 2018.
"Acacia lasiocarpa var. lasiocarpa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.

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