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Acacia adunca A.Cunn. ex G.Don
Family Fabaceae
Subfamily Mimosoideae
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.


Illustration
M. Smith|M. Flockton

Habitat
Photo A.E. Orme

Habit
Photo A.E. Orme

Flower
Photo T.M. Tame

Fruit
Photo A.E. Orme

Other photo
Photo A.E. Orme

Herbarium
Sheet

Herbarium
Sheet

Type
Specimen

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
AVH map***

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)


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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