About Daviesia leptophylla A.Cunn. ex G.Don
Daviesia leptophylla, commonly called narrow-leaf bitter-pea, is a glabrous, broom-like, multi-stemmed shrub. It typically grows up to around 2 m (6 ft 7 in) tall, and rarely grows into a tree-like form reaching 5 m (16 ft) wide. Its phyllodes are scattered along branchlets, linear in shape, yellowish-green, and grow up to 90 mm (3.5 in) long and 6 mm (0.24 in) wide. Flowers grow in leaf axils, usually arranged on two racemes that each hold 5 to 10 flowers. The racemes are held on peduncles 1.3โ5.0 mm (0.051โ0.197 in) long, with a rachis 1.5โ6.0 mm (0.059โ0.236 in) long, and each individual flower sits on a pedicel 1.0โ2.5 mm (0.039โ0.098 in) long. The sepals are 3.4โ4.7 mm (0.13โ0.19 in) long and joined at their base; the upper two sepals are joined for most of their length, while the lower three are triangular and 0.50โ0.75 mm (0.020โ0.030 in) long. The standard petal is broadly elliptic with a notched centre, 6.0โ6.5 mm (0.24โ0.26 in) long. It is bright yellow with a maroon base and an intense yellow centre. The wing petals are 5.0โ6.0 mm (0.20โ0.24 in) long, dark red with yellow edges. The keel petal is 4.0โ4.5 mm (0.16โ0.18 in) long and dark red. Flowering occurs from August to December, and the fruit is a flattened triangular pod 5โ10 mm (0.20โ0.39 in) long. This species grows in shrubland or forest, mostly on slopes and tablelands at altitudes up to 1,400 m (4,600 ft). Its range extends from Wellington in New South Wales, through the Australian Capital Territory and central Victoria, to the south-east of South Australia.