Acacia deltoidea A.Cunn. ex G.Don subsp. deltoidea
Acacia deltoidea A.Cunn. ex G.Don subsp. deltoidea
Fabaceae
Occurs in scattered populations in the Kimberley region of W.A. in the Buccaneer and Bonaparte Archipelago areas and near Cambridge Gulf, extending inland to Mt Barnett and Drysdale R. Natl Park.
Phyllodes inequilaterally obdeltate, elliptic or triangular, mostly broadest at or above middle, 6–9 mm long, (2–) 4–6 mm wide, excentrically mucronate-pungent, coriaceous, glandular-puberulous, often obscurely so. Peduncles (3–) 6–12 mm long, glandular-puberulous, rarely with a bract about the middle; bracteoles ±exserted in buds.
Grows in sand, usually on sandstone, in open shrubland and woodland.
W.A.: creek entering inlet of Talbot Bay, 23 km SE of Cockatoo Is., P.A.Fryxell & L.A.Craven 3893 (CANB, PERTH); Manning Gorge, A.S.George 15176 (PERTH); above the headwaters of the Helby R., T.G.Hartley 14819 (PERTH); Prince Regent R. Reserve, K.F.Kenneally 2081 (K, MEL, PERTH).
Separated from subsp. ampla by dimensions, shape and apex of the phyllodes. Closely related to A. adenogonia and A. vincentii and related to A. stipulosa.
Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia
R.S.Cowan
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