Xanthosia singuliflora

Xanthosia singuliflora  is a species of flowering plant the family Apiaceae and is endemic to the south-west of Western Australia. It is a tufted perennial herb with oblong to wedge-shaped leaves and sessile greenish-yellow flowers with 3 or 4 narrow bracts at the base.

Description
Xanthosia singuliflora is a tufted perennial herb that typically grows to a height of mostly 5–20 cm and has many slender, diffuse stems less than 30 cm long. Its leaves are oblong to wedge-shaped, mostly less than 12 mm long sometimes trifoliate on the ends, on a long petiole. The flowers are sessile or on a very short peduncle, surrounded by 3 or 4 narrow bracts at the base of a very short pedicel, with 2 broader bracts close under the flower. The sepals are pointed and the petals are greenish-yellow. Flowering occurs from September to November and the fruit is prominently ribbed.

Taxonomy and naming
Xanthosia singuliflora was first formally described in 1864 by Ferdinand von Mueller in his Fragmenta Phytographiae Australiae from specimens collected at Cape Pasley. The specific epithet (singuliflora) means "single-flowered".

Distribution and habitat
Xanthosia leiophylla grows on granite outcrops, undulating plains and winter-wet areas in the Avon Wheatbelt, Esperance Plains, Jarrah Forest and Warren bioregions of south-western Western Australia.