Jacksonia fasciculata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, spiny shrub with sharply-pointed end-branches, leaves reduced to scales and orange flowers with red markings in the axils of branches.
Jacksonia fasciculata is an erect, spiny shrub that typically grows up to high and wide. It has greyish green branches, the end branches short with sharply-pointed ends, sometimes with two or three spines, its leaves reduced to lance-shaped scales, long and wide. The flowers are arranged in clusters in the axils of branches, each flower on a pedicel long, with bracteoles long and wide but that fall off as the flowers open. The floral tube is long and the sepals are membraneous, with upper lobes long, wide and joined at the base. The standard petal is orange with red markings, long and deep, the wings orange with red markings, long, and the keel is red, long and deep. The stamens have pink filaments and are long. Flowering occurs from June to November, and the fruit is a membranous, hairy pod long and wide.[1]
Jacksonia fasciculata was first formally described in 1848 by Carl Meissner in Lehmann's Plantae Preissianae from specimens collected near the Swan River by James Drummond.[2] [3] The specific epithet (fasciculata) means 'clustered', referring to the flowers.[4]
This species of Jacksonia grows in heath, shrubland or low woodland between Mingenew and Cunderdin with an outlier near the Murchison River, in the Avon Wheatbelt, Geraldton Sandplains, Swan Coastal Plain bioregions of south-western Western Australia.
This species is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.