Jacksonia divisa
Jacksonia divisa is a species of flowering plant in the family Fabaceae and is endemic to a restricted part of Kakadu National Park. It is an erect, densely branching shrub, its end branches flattened, hairy, leaf-like phylloclades, its leaves reduced to broadly lance-shaped scales, with yellow flowers, and woody, hairy pods.
Description
Jacksonia divisa is an erect, densely branching shrub, that typically grows up to high and wide, its branches greyish-green. Its end branches are narrowly wedge-shaped, long and wide with forked tips. The leaves are reduced to broadly lance-shaped, reddish-brown scales, long and wide. The flowers are clustered in the axils of phylloclades, each flower on a pedicel long. There are lance-shaped bracteoles long and wide at the base of the floral tube. The floral tube is long and the sepals are membranous, the lobes long and wide. The flowers are yellow, the standard petal is long and deep, the wings long, and the keel long. The stamens have red filaments long. Flowering occurs from April to June, and the fruit is a woody, hairy, flattened, broadly elliptic pod, long and wide.
Taxonomy
Jacksonia divisa was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected near Bloomfield Springs in Kakadu National Park. The specific epithet means 'divided', referring to the tips of the phylloclades.
Distribution and habitat
This species of Jacksonia is only known from near the type location, where it grows on a sandy ledge of a sandstone escarpment in the Pine Creek bioregion of Kakadu National Park.
Jacksonia divisa is listed as "vulnerable" under the Northern Territory Government Territory Parks and Wildlife Conservation Act.