Jacksonia calcicola is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a prostrate spreading or erect, prickly shrub with short, curved backwards and sharply pointed end branches, yellow-orange flowers with red markings, and woody, hairy pods.
Jacksonia calcicola is a prostrate spreading or erect shrub that typically grows up to high and wide, its branches greyish-green. Its end branches are long and wide, flattened, curved backwards and sharply-pointed. The leaves are reduced to pale brown, triangular scales, long and wide. The flowers are scattered along branches on a pedicel long. There are lance-shaped bracteoles long and wide on the pedicels. The floral tube is long and the sepals are membranous, the lobes long, wide and fused at the base. The standard petal is yellow-orange to orange with red markings, long, the wings yellow-orange with red marking, long, and the keel orange to red, long. The stamens have pink filaments long. Flowering occurs throughout the year, and the fruit is a woody, densely hairy, broadly elliptic pod, long and wide.[1]
Jacksonia calcicola was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected east of Cervantes by Greg Keighery in 1982.[2] The specific epithet (calcicola) means 'limestone dweller', referring to the habitat.[3]
This species of Jacksonia grows in coastal shrubland on limestone between Eurardy Station and the coastal suburbs of Perth in the Geraldton Sandplains and Swan Coastal Plain bioregions of Western Australia.
Jacksonia calcicola is listed as "not threatened" by the Government of Western Australia, Department of Biodiversity, Conservation and Attractions.