Greek isos — equal, pogon — beard, referring either to the tufts of hairs at the tips of the petal-like segments, or to the hairs which cover the nut.
Shrubs or small trees. Leaves simple or compound, cylindrical or flattened, stiff. Flower cluster a dense axillary or terminal spike, cone-like, consisting of many scales, spherical to ovoid, sometimes stalked. Flowers regular, bisexual. Stamens 4. Ovary with 1 chamber and 1(2), ovules. Fruit cones with scales separating readily. Fruit a small, hairy nut that is neither flattened nor winged.
35 species endemic to Australia with a centre of distribution of 27 species in SW WA.
From seed or from cuttings for selected forms.
Similar to Petrophile but the cone scales falling with the fruits; nut not strongly flattened.
Popular: Sainsbury (1987).
Source: (2002). Proteaceae. In: . 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.