Jacksonia lateritica

Jacksonia lateritica is an erect, sparsely branched shrub that typically grows up to 0.3–1.5 m (1 ft 0 in – 4 ft 11 in) high and 1.0–1.5 m (3 ft 3 in – 4 ft 11 in) wide, its branches greyish-green, or reddish-brown, the end branches phylloclades. Its leaves are reduced to brown, egg-shaped scales, 0.4–0.9 mm (0.016–0.035 in) long, 0.3–0.6 mm (0.012–0.024 in) wide. The flowers are sparsely arranged along the branches, each flower on a pedicel 0.9–1.3 mm (0.035–0.051 in) long. There are broadly egg-shaped bracteoles 0.6–1 mm (0.024–0.039 in) long and 0.7–0.8 mm (0.028–0.031 in) wide on the pedicels. The floral tube is 1.3–1.7 mm (0.051–0.067 in) long and ribbed, the sepals membranous, the upper lobes 2.8–2.9 mm (0.11–0.11 in) long and 1.2–1.3 mm (0.047–0.051 in) wide and fused at the base for 2.4–2.7 mm (0.094–0.106 in), the lower lobes longer and narrower. The petals are yellow-orange, the standard petal 3.2–4.2 mm (0.13–0.17 in) long and 4.4–4.9 mm (0.17–0.19 in) deep, the wings 3.8–3.9 mm (0.15–0.15 in) long, and the keel 4.0–4.4 mm (0.16–0.17 in) long. The stamens have brown filaments 2.2–4.3 mm (0.087–0.169 in) long. Flowering occurs from April to October, and the fruit is a woody, elliptic pod, 3.8–4.5 mm (0.15–0.18 in) long, 1.9–2.2 mm (0.075–0.087 in) wide and densely covered with white hairs.

This species of Jacksonia grows in woodland on yellow sand over laterite, in the far east of the Northern Territory in the Gulf Fall and Uplands bioregion and near Camooweal and south of Mount Isa, with an outlier near Jericho, in the Mount Isa Inlier bioregion.