robur Cav.

Mature leaves rusty brown-tomentose and strongly reticulate underneath, ovate-oblong, mostly 10–25 cm long, 2–8 cm wide, irregularly and coarsely serrate. Spikes 8–12 cm long, 7–8 cm diam., deep bluish green when young. Style spreading; pollen presenter very small. Shrub c. 1 m high with densely tomentose branches. Coast and adjacent plateaus. Swamps. Fl. summer ( Hybrids between B. robur and B. oblongifolia occur)