Grevillea diffusa Spreng.

Shrub to nearly 2 m tall. Leaves entire, linear to oblanceolate, to 12 cm long, 1 cm wide, hairy below, margin rolled under. Flower clusters erect or hanging, roundish. Flowers deep red, rarely green and brown, hairy outside, bearded inside; winter and spring. Style red. Fruit hairless.

NSW.

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.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Proteanae
order      Proteales
family       Proteaceae
genus        Grevillea Knight