Thysanotus fastigiatus


Thysanotus fastigiatus is a species of flowering plant in the Asparagaceae family, and is endemic to the south-west of Western Australia. It is a rhizomatous, perennial herb, with a few narrowly linear leaves, purple flowers arranged singly with narrowly lance-shaped sepals, elliptic, fringed petals, six stamens and an erect style.

Description

Thysanotus fastigiatus is a perennial herb with a more or less spherical rhizome and fibrous roots. Its few leaves are produced annually, long and wither early, with hairs about long. The flowers are borne singly on stems up to long, the side branches long, each flower on a pedicel about long. The flowers are purple, the perianth segments about long with a fringe about long. The sepals are narrowly lance-shaped, about wide. There are six stamens, the anthers slightly twisted and about long, and the style is erect, about long. Flowering occurs in November and December.

Taxonomy

Thysanotus fastigiatus was first formally described in 1981 by Norman Henry Brittan in Brunonia from specimens he collected about east-south-east of Perth in 1974. The specific epithet means 'fastigiate'.

Distribution and habitat

This species grows in limestone gravel towards the top of the Darling Range in low eucalypt-banksia woodland east of Perth, in the Jarrah Forest and Swan Coastal Plain bioregions of south-western Western Australia.

Conservation status

Thysanotus fastigiatus is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.