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Habit near Pardoo Station. Swainsona pterostylis is a species of flowering plant in the family Fabaceae and is endemic to northern parts of Western Australia. It is a low-growing or prostrate perennial herb, with imparipinnate leaves with mostly 11 to 19 broadly elliptic leaflets, and racemes of 5 to more than 30 purple or violet flowers.
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.
The inflorescence is a cluster of 1–3 flowers on pedicels 4–6 mm (0.16–0.24 in) long. The purple standard petal is twice the length of the calyx, with darker purple veins and a yellow centre, the wings and keel shorter. Flowering occurs from August to October and the fruit is an oval shaped pod 10–15 mm (0.39–0.59 in) long. [2]
The petals mostly purple, sometimes pinkish-purple or yellow and green, standard petal broadly egg-shaped, finely notched, wings oblong-shaped and the keel semi-circular. Flowering occurs in May or July to December and the fruit is a pod 10–15 cm (3.9–5.9 in) long and about 4 mm (0.16 in) wide, densely covered in short, matted hairs and ...
Swainsona behriana, commonly known as Behr's swainsona, [2] is a species of flowering plant in the family Fabaceae and is endemic to south-eastern continental Australia. It is a prostrate or low-growing perennial herb with imparipinnate leaves usually with 9 to 13 narrowly elliptic to egg-shaped leaflets with the narrower end towards the base, and racemes of 2 to 7 purple flowers.
The thin, smooth or slightly hairy leaflets are ovate, 2.5 to 11 centimeters long, and 1.5 to 5 centimeters wide. It produces purple flowers in summer. The flowers are axillary, usually solitary, and resupinate. The calyx is tubular. The corolla of the flower is about 5 centimeters long, its wings and keel much shorter than the standard.
The petals are dark brownish-red to dark purple, sometimes almost black, the standard petal about 10 mm (0.39 in) long and 6–7 mm (0.24–0.28 in) wide, the wings about 8 mm (0.31 in) long, and the keel usually 8–10 mm (0.31–0.39 in) long and 2–3 mm (0.
Swainsona colutoides, commonly known as bladder senna or bladder vetch, [2] is a species of flowering plant in the family Fabaceae and is endemic to arid areas of Australia. It is an erect annual, shrub-like herb, with imparipinnate leaves usually with up to 13 to 17 egg-shaped leaflets with the narrower end towards the base, and racemes of 10 to 20 purple flowers.