Common name: Wallangarra wattle, cascade wattle
Acacia adunca A.Cunn. ex G.Don APNI*
Synonyms: Racosperma aduncum (A.Cunn. ex G.Don) Pedley APNI*
Acacia crassiuscula var. adunca (A.Cunn. ex G.Don) Benth. APNI*
Acacia accola Maiden & Betche APNI*
Description: Erect or spreading shrub or tree 2.5–14 m high; branchlets ± terete, glabrous.
Phyllodes ± linear, straight to slightly curved, 7–13 cm long, mostly 1–3 mm wide, glabrous, midvein ± impressed, lateral veins obscure or not evident, commonly finely wrinkled when dry, apex acute or subacute and sometimes with a mucro; 1 or occasionally 2 glands along margin, minute, the lowermost 10–45 mm above pulvinus; pulvinus < 2 mm long.
Inflorescences 4–11 in an axillary raceme; axis 1–3.5 cm long; peduncles 3–5 mm long, glabrous; heads globose, 9–14-flowered, 5–7 mm diam., bright yellow.
Pods usually slightly curved, raised on opposite sides over alternate seeds, ± straight-sided and sometimes irregularly constricted between some seeds, 5–13 cm long, 10–12 mm wide, thinly leathery, glabrous; seeds longitudinal; funicle expanded towards seed.
Flowering: usually June–October.
Distribution and occurrence: from Torrington district and Bolivia Hill to the Qld border, also near Legume.
Grows in dry sclerophyll forest, woodland and shrubland, chiefly on granite outcrops.
NSW subdivisions: NC, NT, ?NWS
Other Australian states: Qld
The name refers to the very small but distinctly hooked ends of the phyllodes. Acacia adunca is similar to A. linearifolia, which has wider phyllodes with a slight bend at the gland and larger flower heads.
Text by P.G. Kodela (last update Apr 2012)
Taxon concept: P.G. Kodela & G.J. Harden, Flora of NSW Vol. 2 (2002)
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