Banksia arborea

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Yilgarn dryandra, Banksia arborea, is a tree found only in Western Australia. It grows up to about 6 meters tall with a thick trunk. Its leaves are elliptical to lance-shaped, 3–6 cm long and 1.4–2.2 cm wide, with serrated edges and up to six sharp teeth on each side. The flower spikes appear at the ends of branches and hold about 110–180 yellow flowers. The perianth is 20–28 mm long with shaggy hairs. It mostly flowers from March to May, and again in September–October. The fruit is an egg-shaped follicle 8–15 mm long that opens when mature.

Habitat: It grows among ironstone rocks in open shrubland on hills north of Southern Cross in inland Western Australia.

Taxonomy: It was first described in 1964 as Dryandra arborea by Charles Gardner, then renamed Banksia arborea in 2007 by Austin Mast and Kevin Thiele. The name arborea means "tree-like."

Conservation: It is listed by the Western Australia Government as Priority Four — Rare Taxa, meaning it is rare or near threatened. Climate change could shrink its range by 50–80% by 2080, depending on how severe future changes are.