Common name: fan wattle, fan-leaf wattle
Acacia amblygona A.Cunn. ex Benth. APNI* Synonyms: Racosperma amblygonum (A.Cunn. ex Benth.) Pedley APNI*
Acacia nernstii F.Muell. APNI*
Description: Erect to sometimes decumbent shrub 0.5–1.5 m high; branchlets ± terete with fine ridges, sparsely to densely hairy, sometimes glabrous.
Phyllodes sessile, ± ovate to lanceolate or ± elliptic, 0.8–1.5 cm long, 2–4 mm wide, glabrous to sparsely hairy with long hairs, with 1–4 longitudinal veins, midvein most prominent and closer to lower margin, 1–3 or more secondary veins sometimes conspicuous and sparingly branched, apex pungent-pointed or acute, base asymmetric; 1 small gland near base.
Inflorescences 1 on an obscure axillary axis < 1 mm long, appearing ± simple; peduncles 6–12 mm long, glabrous; heads globose, 12–18-flowered, 4–6.5 mm diam., bright yellow.
Pods strongly curved or twisted or often coiled 1–2 times, raised over and constricted between seeds, 3–7 cm long, 3–5 mm wide, firmly papery to thinly leathery, smooth or slightly wrinkled, glabrous; seeds longitudinal; funicle expanded towards seed.
Flowering: July–October.
Distribution and occurrence: north from Lake Cargelligo. Grows in dry sclerophyll forest, woodland and heath, chiefly in stony or sandy soils, often in dry creek beds.
NSW subdivisions: NC, CC, NWS, CWS, SWS, NWP, SWP
Other Australian states: Qld
The name 'amblygona' means obtuse angle but its allusion to this species is not clear. Acacia amblygona has some similarity to A. pravifolia, which differs in phyllode and flower details. There are specimens intermediate between A. pravifolia and A. amblygona and hybrids between these species might exist. (T.M. Tame, Acacias of Southeast Australia, 1992).
Text by P.G. Kodela (last edited May 2012)
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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