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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 subtessarogona

Acacia subtessarogona Tindale & Maslin
Vernacular names
English: Spreading Gidgee

Acacia subtessarogona, commonly known as spreading gidgee, is a tree in the family Fabaceae and the subgenus Juliflorae that is native to a small area in western Australia.

1 Description
2 Distribution
3 See also
4 References


Spreading gidgee grows as an upright tree to a height of up to 8 m (26 ft) and has ribbed branchlets that are densely hired between each of the ribs. Like most Acacia species, it has phyllodes rather than true leaves. These are flat, curved, and have a length of about 7 to 13 cm (2.8 to 5.1 in) and a width of 4 to 9 mm (0.16 to 0.35 in) and have longitudinal striations. When it between July and October[1] it produces simple inflorescences that occur in groups of one to five in the axils on 4 to 8 mm (0.16 to 0.31 in) long stalks. The flower-heads are a short cylindrical shape with a length of 6 to 12 mm (0.24 to 0.47 in) and densely packed with yellow flowers. The seed pods that form after flowering have a length of 6 to 12 cm (2.4 to 4.7 in) with a distinctive groove along each edge. The seeds insode are 5 to 6.5 mm (0.20 to 0.26 in) long and have an obloid shape.[2]

Endemic to Western Australia, it occurs only in a small area of the Gascoyne River catchment near Carnarvon with outlying population near Wiluna.[2] It is often found situated in low-lying area, along creeklines[1] or on rocky ground growing in red loamy soils and is commonly associated with Acacia sclerosperma and Acacia tetragonophylla and sometimes with Acacia ancistrocarpa.[2]
See also

List of Acacia species

Wikispecies has information related to Acacia subtessarogona.

"Acacia subtessarogona". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.

"Acacia subtessarogona". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.

Mitchell, A. A.; Wilcox, D. G. (1994). Arid Shrubland Plants of Western Australia, Second and Enlarged Edition. University of Western Australia Press, Nedlands, Western Australia. ISBN 978-1-875560-22-6.

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