Mountain Swainson-pea

Swainsona recta is an erect or ascending perennial plant that typically up to a height of 20 cm (7.9 in) with 1 or 2 slender, ribbed stems. Its leaves are imparipinnate, mostly 30–60 mm (1.2–2.4 in) long, with 5 to 13 very narrowly linear leaflets, the side leaflets mostly 10–20 mm (0.39–0.79 in) long and 1 mm (0.039 in) wide. There is a long, narrow stipule, between 2 and 10 mm (0.079 and 0.394 in) long at the base of the petiole. The flowers are arranged in racemes 80–250 mm (3.1–9.8 in) long with about 6 to more than 25 flowers on a peduncle 0.5–1.5 mm (0.020–0.059 in) long, each flower 5–8 mm (0.20–0.31 in) long on a densely hairy pedicel 1–2 mm (0.039–0.079 in) long. The sepals are joined at the base, forming a tube 2.0–2.5 mm (0.079–0.098 in) long, the sepal lobes usually half as long as the tube. The petals are purple, the standard petal about 7–11 mm (0.28–0.43 in) long and wide, the wings 5–9 mm (0.20–0.35 in) long, and the keel about 6–7 mm (0.24–0.28 in) long and 2.0–2.5 mm (0.079–0.098 in) deep. Flowering occurs between September and early December, and the fruit is 5–10 mm (0.20–0.39 in) long and 4–5 mm (0.16–0.20 in) wide with the remains of the style about 4 mm (0.16 in) long.

Mountain Swainson-pea grows in grassland and open woodland, often on stony hillsides on the Central and South Western Slopes of New South Wales and in the north and north-east of Victoria.