Banksia dentata is a species of tree in the genus Banksia. It occurs across northern Australia, southern New Guinea and the Aru Islands. It regenerates from bushfire by regrowing from its woody base, known as a lignotuber.
About Banksia dentata in brief
Banksia dentata is a species of tree in the genus Banksia. It occurs across northern Australia, southern New Guinea and the Aru Islands. Growing as a gnarled tree to 7 m high, it has large green leaves up to 22 cm long with dentate margins. The cylindrical yellow inflorescences appear over the cooler months, attracting various species of honeyeaters, sunbirds, the sugar glider and a variety of insects. Flowers fall off the ageing spikes, which swell and develop follicles containing up to two viable seeds each. It regenerates from bushfire by regrowing from its woody base, known as a lignotuber. It is one of four Banksia species collected by Sir Joseph Banks in 1770, and one of the four species published in 1782 as part of Carolus Linnaeus the Younger’s original description of banksia. Within the genus, it is classified in the series Salicinae, a group of species from Australia’s eastern states. Genetic studies show it is a basal member within the group. The bright green cotyledons are obovate, measuring 1. 6–1. 9 cm long by 0. 8–1 cm wide. The seed is obovated, and composed of a dark brown 1.
1–2.cm wide membranous ‘wing’ and obovately-shaped seed proper which measures 1. 2 cm long by0. 5–0. 8 cm – the seed surface can be smooth or covered in tiny ridges. The subsequent seedling leaves arise from a 3–4mm high smoothotyl that is 1.5 mm high and 5 mm in diameter. Each is roughly linear in shape, with two serrations on the upper third of the leaf margin’s length. Successful seedling stems are hairy between quarter to quarter of a quarter of the stem’s length, with mucronate tips. The next generation are roughly linear, measuring 4–4 mm long and 0.0 0.5 wide, with 0.3 mm above the hypocotyl arising 3 mm above the cotYledons. The following generation is linear in shape, measuring 2–2 cm. and 0 0 5 cm in diameter, with 2 mm between the hypocotsyl and 1 cm above the cOTYledon arising 3-4mm high, measuring 0.5–4.mm in diameter. The third generation is smooth and linear, with a 1–3 cm high, 0.8 cm-wide cOTyledon that is 0.6 mm high and 3–7 cm deep. The flower parts soon fall off, which develop into irregular-cylindrical infructescences.