Jacksonia racemosa

Jacksonia racemosa is an erect to prostrate, spindly shrub that typically grows to 0.1–0.6 m (3.9 in – 1 ft 11.6 in) high and 0.2–1.5 m (7.9 in – 4 ft 11.1 in) wide, its branches greyish-geen, with sharply-pointed branchlets 5–9.3 mm (0.20–0.37 in) long and 0.3–0.4 mm (0.012–0.016 in) long at the base of the plant. Its leaves are reduced to dark-brown, narrowly egg-shaped scales, 0.4–1.3 mm (0.016–0.051 in) long, 0.25–1.0 mm (0.0098–0.0394 in) wide and sometimes have toothed edges. The flowers are scattered along the branches on pedicels 1.5–5.4 mm (0.059–0.213 in) long, with narrowly egg-shaped bracteoles 0.6–1.2 mm (0.024–0.047 in) long and 0.3–0.4 mm (0.012–0.016 in) side on the middle of the pedicels. The floral tube is 0.3–1.4 mm (0.012–0.055 in) long and the sepals are membranous, with lobes 5.0–7.7 mm (0.20–0.30 in) long and 1.1–1.6 mm (0.043–0.063 in) wide. The standard petal is yellow with red markings, 5.3–6.7 mm (0.21–0.26 in) long and 5.0–7.4 mm (0.20–0.29 in) broad, the wings yellow with red markings, 4.8–5.4 mm (0.19–0.21 in) long, and the keel is dark red, 5.0–6.3 mm (0.20–0.25 in) long. The stamens have white, pink or red, filaments 0.4–0.6 mm (0.016–0.024 in) long. …

This species of Jacksonia grows on lateritic ridges or flats in heathland or woodland from east of Perth to the Stirling Ranges and east of Munglinup to Esperance in the Avon Wheatbelt, Esperance Plains, Jarrah Forest and Mallee bioregions of south-western Western Australia.