About Dillwynia sieberi Steud.
Dillwynia sieberi, commonly known as Sieber's parrot-pea, is an erect shrub that typically grows to a height of 1 to 2 meters, which equals 3 feet 3 inches to 6 feet 7 inches. Its stems are covered in flattened hairs. The leaves are linear, needle-shaped, sharply-pointed, between 7 and 20 millimeters (0.28 to 0.79 inches) long, and less than 1 millimeter (0.039 inches) wide. Flowers are arranged in racemes in up to ten leaf axils near the ends of branchlets. Each flower grows on a pedicel around 3 millimeters (0.12 inches) long, with bracts and bracteoles that measure about 1 millimeter (0.039 inches) long. The sepals are 3 to 5 millimeters (0.12 to 0.20 inches) long and joined at the base, with the upper lobes joined into a broad "lip". The petals are yellow to yellow-orange with reddish-brown markings: the standard petal is 5.5 to 9 millimeters (0.22 to 0.35 inches) long, the wings are 5 to 9.2 millimeters (0.20 to 0.36 inches) long, and the keel is 4.5 to 6 millimeters (0.18 to 0.24 inches) long. Flowering occurs from April to November. The fruit is an oval pod 5 to 6 millimeters (0.20 to 0.24 inches) long, with the remains of the petals still attached. This species grows in forest and woodland habitats. It is widespread along the ranges and western slopes of New South Wales and the Australian Capital Territory, and in coastal areas between Newcastle and Nowra. It is also found in south-eastern Queensland, and in a small number of locations in south-eastern Victoria.
