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Acacia sibirica S.Moore
Family Fabaceae
Subfamily Mimosoideae
Common name: bastard mulga

Acacia sibirica S.Moore APNI*

Synonyms: Acacia stowardii Maiden APNI*
Acacia clivicola Pedley APNI*
Racosperma stowardii (Maiden) Pedley APNI*
Racosperma sibiricum (S.Moore) Pedley APNI*

Description: Erect or spreading shrub or tree 2–5 m high; bark finely fissured, grey; branchlets angled or terete, ± scurfy.

Phyllodes ± linear, ± curved, 4–8 cm long (often with some phyllodes shorter), 1–3 mm wide, glabrous, ± resinous, longitudinal veins numerous, fine, obscure, apex subacute with a mucro; 1 small gland near base; pulvinus < 2 mm long.

Inflorescences 2 or rarely 1 in axil of phyllodes; peduncles 3–5 mm long, glabrous; heads ± ovoid or short-cylindrical, mostly 0.5–1.5 cm long, 25–35-flowered, bright yellow.

Pods straight to slightly curved, ± flat but convex over seeds alternately on each side, straight-sided to slightly constricted between seeds, 2.5–7 cm long, mostly 4–7 mm wide, firmly papery, ± finely reticulate, ± glabrous; seeds oblique or longitudinal; funicle expanded towards seed.

Photo T.M. Tame



Flowering: throughout year, irregularly depending on weather conditions.

Distribution and occurrence: north and west from the Bourke district.

Scattered in Mulga and heath.
NSW subdivisions: NWP, NFWP
Other Australian states: Qld W.A. S.A. N.T.
AVH map***

Named after the Type locality Siberia Soak, c. 75 km NW of Kalgoolie, WA. Described under the synonym Acacia stowardii in the Flora of New South Wales Vol. 2 (2002), and has previously been considered incorrectly as a synonym of A. kempeana (Flora of Australia 11B, 2001).

Text by P.G. Kodela (February 2006)
Taxon concept:

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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