Dodonaea platyptera F.Muell.
Mueller, F.J.H. von in Hooker, W.J. (1857) Hooker's Journal of Botany & Kew Garden Miscellany 9 : 197. Type: Northern Territory, Fitzmaurice River, Oct. 1855, F. Mueller s.n.; holo: MEL 84127; iso: K. Fide J. G. West, Brunonia 7: 95 (1984).
Broad-winged Hop Bush; Hopbush
Usually flowers and fruits as a shrub about 2-3 m tall.
Terminal buds and young leaves viscous or varnished. Petioles about 0.3-1 cm long, 3-angled in transverse section at least in the upper part. Leaf blades about 3.5-10 x 1-4.5 cm, flat glands usually visible with a lens on the underside of the leaf blade. Lateral veins forming loops inside the blade margin. Narrow ridges run down the twigs from the base of each petiole.
Male flowers: Flowers about 4-5 mm diam., tepals about 2.3-3 x 1.2-1.7 mm often with yellow glands on the outer surface. Stamens eight, longer than the tepals, filaments about 0.2-0.3 mm long, anthers about 2.3-2.8 x 1.3-1.5 mm. Female flowers: Pedicels about 8-10 mm long, tepals about 2.5-3 x 1 mm. Style about 13-14 mm long. Stigma 2-4-lobed.
Cotyledons linear to oblong, about 17-28 x 2-5 mm, apex acute, glandular, base attenuate. First pair of leaves simple, alternate or opposite, obovate or spathulate, often lobed. At the tenth leaf stage: leaf blade narrowly to broadly elliptic, apex mucronate, base attenuate, midrib raised on the upper surface. Stem, terminal and axillary buds resinous. Stems irregularly four-angled with ribs running down the stem from the base of each petiole. Seed germination time 28 to 45 days.