About Daviesia incrassata Sm.
Daviesia incrassata Sm. is an erect, glabrous shrub that grows in a mounded to spreading form, and typically reaches a maximum height of 1 meter (3 feet 3 inches). It has branchlets that are more or less zigzag in shape. Its phyllodes are scattered, needle-shaped or triangular in cross-section, and measure 5 to 15 millimeters (0.20 to 0.59 inches) long. Flowers are arranged in groups of two to four in leaf axils, with each flower borne on a 2.0 to 4.5 millimeter (0.079 to 0.177 inch) long pedicel. Oblong bracts 1.5 to 2.0 millimeters (0.059 to 0.079 inches) long are present at the base of the flower structure, and the rachis ranges from 0.25 to 2 millimeters (0.0098 to 0.0787 inches) long. The sepals are 2.5 to 3.0 millimeters (0.098 to 0.118 inches) long and joined at the base. The upper two sepal lobes are joined for most of their length, and the lower three lobes are 0.5 to 1.0 millimeters (0.020 to 0.039 inches) long. The standard petal is elliptic to egg-shaped, 7 to 8 millimeters (0.28 to 0.31 inches) long, and orange with a reddish-brown base. The wings are 6.0 to 7.5 millimeters (0.24 to 0.30 inches) long and deep pink, and the keel is 7.0 to 7.5 millimeters (0.28 to 0.30 inches) long and pink with a blackish tip. Flowering occurs from June to November, and the fruit is an inflated triangular pod 11 to 14 millimeters (0.43 to 0.55 inches) long. This Daviesia species is widespread across the south-west of Western Australia, ranging from near Dongara in the north-west to Cape Arid National Park in the south-east. Subspecies incrassata grows in heath, woodland and forest, in sandy or swampy locations. Subspecies reversifolia grows in heath in near-coastal areas between Bremer Bay and Esperance. Subspecies teres grows in heath or near saltpans between Mullewa, Morawa, Mogumber Lake Grace and Kulin.