Guichenotia alba is a flowering plant in the family Malvaceae and is endemic to Western Australia. It is a slender, spreading shrub with lax, hairy young branches, leaves with the edges rolled under, and white flowers.
Guichenotia alba is a slender, spreading shrub that typically grows to high and wide with many stems at the base but few branches. Its young branches are densely covered with woolly, star-shaped hairs. The leaves are long, the edges rolled under, on a petiole long with stipules up to two-thirds the length of the leaves. The leaves are densely woolly-hairy when young, but later glabrous. The flowers are borne singly, in pairs or groups of three, on a peduncle long, each flower on a pedicel long, with narrowly egg-shaped bracts long and bracteoles long at the base. The flowers are bell-shaped with five divided, petal-like sepals long, that are white on the outside, pale green inside. There are five tiny white, scale-like petals and the stamens are red. Flowering occurs in July and August and the fruit is a capsule in diameter.[1] [2]
Guichenotia alba was first formally described in 1992 by Greg Keighery and the description was published in the journal Nuytsia from specimens he collected near Cataby in 1988.[3] The specific epithet (alba) means "white".[4]
This species of Guichenotia grows in heath, often in winter-wet areas, in a few places between Three Springs and Cataby in the Avon Wheatbelt, Geraldton Sandplains and Swan Coastal Plain bioregions of south-western Western Australia.[1] [2]
Guichenotia alba is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, meaning that it is poorly known and known from only a few locations but is not under imminent threat.[5]