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Acacia oswaldii F.Muell.
Family Fabaceae
Subfamily Mimosoideae
Common name: umbrella wattle, miljee

Acacia oswaldii F.Muell. APNI*

Synonyms: Racosperma oswaldii (F.Muell.) Pedley APNI*
Acacia amaliae Domin APNI*
Acacia sessiliceps F.Muell. APNI*

Description: Erect or spreading tree or shrub 2–6 m high; bark finely fissured, dark grey; branchlets angled at extremities, soon terete, ± hairy.

Phyllodes linear, narrowly elliptic or narrowly elliptic-oblong, straight to curved, mostly 3–8 cm long (range 2–12 cm long), 2–10 mm wide, 10–15 prominent but fine longitudinal veins, glabrescent with age, apex acute to obtuse with a mucro; 1 gland at base; pulvinus < 2 mm long.

Inflorescences simple, 1 or 2 in axil of phyllodes; peduncles 0–1 mm long, hairy; heads globose, 5–16-flowered, 5–8 mm diam., pale yellow.

Pods strongly curved or twisted or coiled 1–2 times, ± flat except raised over seeds, slightly or variably more deeply constricted between seeds, 4–25 cm long, 5–12 mm wide, leathery to woody, minutely appressed-hairy; seeds longitudinal; funicle expanded towards seed.

Photo T.M. Tame

Photo T.M. Tame


Flowering: October–December.

Distribution and occurrence: west of Grenfell, Gunnedah and Yetman districts.

widespread in various habitats and communities.
NSW subdivisions: NWS, CWS, SWS, NWP, SWP, NFWP, SFWP
Other Australian states: Qld Vic. W.A. S.A. N.T.
AVH map***

Named after Ferdinand Oswald, who was involved with the collection of the type; he subsequently returned home to Germany.

Text by P.G. Kodela
Taxon concept: P.G. Kodela & G.J. Harden, Flora of NSW Vol. 2 (2002)

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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