Isopogon divergens R.Br.

Species Nomenclature and Growth Form

Isopogon divergens R.Br. is a shrub that typically reaches 0.3 to 2 meters in height, and has reddish brown branchlets.

Leaf Petiole Characteristics

Its leaves measure 50 to 150 millimeters in length, growing on a petiole up to 56 millimeters long.

Leaf and Leaflet Structure

The leaves are pinnate or bipinnate, with cylindrical leaflets that are 1 to 1.5 millimeters wide.

Inflorescence Structure

Flowers are arranged in sessile heads that are spherical, oblong, or oval, 40 to 45 millimeters in diameter, with egg-shaped involucral bracts at the base.

Flower Appearance

The flowers themselves are around 15 to 25 millimeters long, pink, often tinted with mauve, and glabrous.

Flowering Period

Flowering takes place from August to October.

Fruit Structure

The fruit is a hairy oval nut, which fuses with other nuts to form a spherical cone 15 to 25 millimeters long.

Common Name and Habitat

This species, commonly called spreading coneflower, grows in shrubland and heath.

Distribution Range

It is widely distributed between the Murchison River and Lake Grace, across the Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Mallee and Swan Coastal Plain biogeographic regions of south-western Western Australia.