About Xanthosia atkinsoniana F.Muell.
Xanthosia atkinsoniana is an erect, perennial herb that grows up to 60 centimetres high. Plants are sparsely hairy when young, and become hairless as they age. Flowering stems of this species are almost completely leafless. Most leaves of Xanthosia atkinsoniana grow at the base of the plant, and attach to the plant via a petiole 2 to 12 centimetres in length; the leaf blade measures 2–4 cm by 1.5–4 cm. Leaves are divided into three segments, and these segments are often further divided; the lower surface of leaves bears sparse star-shaped (stellate) hairs. Flower clusters take the form of umbels that hold 16 to 36 flowers each, and are borne on a thick peduncle that can reach up to 40 cm in length. The white bracteoles are petal-like in shape and measure 3 to 8 millimetres long. Sepals are approximately 1 to 1.6 millimetres long, while petals are white to pinkish in color and about 1.5 millimetres long. The stylopodium, a disc-like enlargement at the base of the style, is covered in hairs. Fruits measure 1.8 to 2.7 millimetres long, and split apart into mericarps that each have nine ribs. In New South Wales, this species flowers from September through April. In Western Australia, flowering occurs from October to December, or alternatively from January to April.
