About Banksia undata A.R.Mast & K.R.Thiele
Banksia undata is a shrub that typically reaches 3 meters (9.8 feet) in height and does not form a lignotuber. It produces wavy, serrated, wedge-shaped leaves that are 25–110 mm (0.98–4.33 in) long and 10–60 mm (0.39–2.36 in) wide. Leaves are either sessile or borne on a very short petiole, with between four and nine irregular teeth along each edge. Its flowers are pale yellow, arranged in heads containing 80 to 160 individual flowers. Hairy, egg-shaped to narrow lance-shaped involucral bracts 12–15 mm (0.47–0.59 in) long grow at the base of each flower head. The perianth is 30–38 mm (1.2–1.5 in) long, and sometimes has a pinkish tint. The pistil is 31–52 mm (1.2–2.0 in) long. Flowering occurs from July to October, and up to eight egg-shaped to elliptical follicles 12–15 mm (0.47–0.59 in) long develop in each flower head after flowering. This species grows in jarrah forest in the area between Clackline, Dwellingup and Bannister. Variety splendens occurs from the Brookton Highway south to Bannister, while variety undata is found between Clackline and Dwellingup. An assessment of the potential impact of climate change on this species found that its range will likely contract by between 50% and 80% by 2080, with the extent of contraction depending on the severity of climate change.
