Banksia nana, commonly known as dwarf dryandra, is a species of shrub that is endemic to a small area in the south-west of Western Australia. It has underground stems, pinnatipartite leaves with sharply-pointed lobes, pale green or yellow flowers and broadly egg-shaped follicles.
Banksia nana is a shrub with short, hairy, underground stems and a small lignotuber. The leaves are pinnatipartite, long and wide on a petiole up to long. There are between ten and thirty-five sharply-pointed lobes on each side of the leaves. Between twelve and seventeen pale green or yellow flowers are arranged in a head on the ends of branches, with egg-shaped to lance-shaped involucral bracts up to long at the base of the head. The perianth is long and the pistil long and curved. Flowering occurs in October and the follicles are broadly egg-shaped, long.[1]
This species was first formally described in 1855 by Carl Meissner who gave it the name Dryandra nana and published the description in Hooker's Journal of Botany and Kew Garden Miscellany from specimens collected by James Drummond.[2] [3] The specific epithet (nana) is a Latin word meaning "dwarf".[4] In 2007 Austin Mast and Kevin Thiele transferred all dryandras to the genus Banksia and renamed this species Banksia nana.[5] [6]
Banksia nana grows in kwongan on low hills near Badgingarra in the Geraldton Sandplains and Swan Coastal Plain biogeographic regions.
This banksia is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife, meaning that it is poorly known and known from only a few locations but is not under imminent threat.[7]