Jacksonia chappilliae is a species of flowering plant in the family Fabaceae and is endemic to a restricted area of northern New South Wales. It is an erect shrub with its end-branches sharply-pointed phylloclades, and yellow-orange flowers with red markings scattered along the branches.
Jacksonia chappilliae is an erect shrub that typically grows up to high and wide and has many stems. The end branches are sharply-pointed, densely hairy, erect and winged. Its leaves are reduced to scales, long and wide. The flowers are scattered along the branches, each flower on a pedicel long, with egg-shaped bracteoles long and wide with toothed edges. The floral tube is long and the sepals are membraneous and deep red, with lobes long and wide, the upper lobes longer and wider than the lower lobes. The flowers are yellow-orange with red markings, the standard petal long and wide, the wings long, and the keel long. The stamens have yellowish-green filaments and are long. Flowering occurs from September to November, and the fruit is a membraneous, densely hairy pod long and wide.[1] [2]
Jacksonia chappilliae was first formally described in 2007 by Carolyn F. Wilkins in Australian Systematic Botany from specimens collected by John Beaumont Williams west of Woodenbong in 1994.[3] The specific epithet (chappilliae) honours Jennifer Anne Chappill, the principal research scientist in the revision of Jacksonia.
This species of Jacksonia grows in heath and scrub on trachyte outcrops and is only known from the Woodenbong and Koreelah districts in far northern New South Wales.