Commemorating the 3rd Duke of Buckingham and Chandos, Richard Grenville (1823–89), Secretary of State for the Colonies (1866–68).

Trees to 30 m tall in nature. Leaves simple, alternate; margins entire or lobed. Flower cluster terminal or axillary. Flowers irregular, bisexual, fragrant. Perianth bent back, the lobes spreading. Stamens 4, fused to the perianth.ovary stalked,with 1 chamber containing 4 ovules. Fruit follicle broadly ovate, 2-3 cm long, 1.5-2 cm wide, opening along the upper suture; seeds rhomboid, flat with a narrow wing.

2 species endemic to NE Qld.

Seed and old wood cuttings.

Leaves hairless below, generally waxy-blue; flower clusters white, cylindrical, with a wavyedged hypogynous gland; follicle containing 4-6 seeds (Grevillea has 1-2 seeds).

Source: Spencer, R.; Molyneux, B.; Mathews, D. (2002). Proteaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.