Thysanotus anceps

Thysanotus anceps is a leafless perennial herb with an irregularly shaped rhizome up to 50 mm (2.0 in) long and 30 mm (1.2 in) wide. Young plants have linear leaves 10–15 mm (0.39–0.59 in) long and about 30 mm (1.2 in) wide, but mature plants are leafless with three or four branching stems that are more or less square at the base. The flowers are borne in umbels of two or three flowers, each on a pedicel about 7 mm (0.28 in) long. The flowers are purple, with perianth segments 13–14 mm (0.51–0.55 in) long, the sepals linear to lance-shaped 1.5–2 mm (0.059–0.079 in) wide, the petals elliptic with a fringe about 4 mm (0.16 in) long. There are six stamens, the style is curved, about 8–9 mm (0.31–0.35 in) long. Flowering occurs from October to December and the seed is elliptical, about 2 mm (0.079 in) long and 1.5 mm (0.059 in) in diameter with an orange aril.

This species grows in jarrah (Eucalyptus marginata) - marri (E. calophylla) forest in lateritic soil in the Darling Range, in the Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain bioregions of south-western Western Australia.