Thomasia angustifolia

Thomasia angustifolia is a small shrub that grows to about 0.6 m (2 ft 0 in) high and 1.2 m (3 ft 11 in) wide. The dark green leaves are 8–25 mm (0.31–0.98 in) long and 2–6 mm (0.079–0.236 in) wide. The leaf edge is smooth and the leaf surface covered in star shaped hairs. The stipule a small appendage at the base of the leaf, only present on young leaves, is 5–6 mm (0.20–0.24 in) long and quickly shed. The flower petals are two small lobes near the ovary. The pink or purple calyx are 3.5–7 mm (0.14–0.28 in) long, joined about half way and covered in star-shaped hairs. The smaller calyx below these are 5.5–8 mm (0.22–0.31 in) long, covered in star-shaped hairs but not fused. The pedicel is 4–6.5 mm (0.16–0.26 in) long and covered in star-shaped hairs. The corolla is smooth and 0.7–2 mm (0.028–0.079 in) long. Flowering occurs from late autumn to late spring.

Thomasia angustifolia was first formally described by botanist Ernst Gottlieb von Steudel in 1845 who published the description in Plantae Preissianae.[3][4] The specific epithet (angustifolia) is from the Latin angustus meaning "narrow"[5]^:90 and folium meaning "leaf".[5]^:340

Narrow-leaved tomasia is found growing in loam, sand plains and occasionally damp locations near creeks from Albany and west to Esperance.[2]