Thysanotus isantherus

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Thysanotus isantherus is a small, tufted perennial herb in the Asparagaceae family, endemic to the south-west of Western Australia. It has slender, threadlike leaves and small tubers at the base. Each year it grows about six threadlike leaves 100–150 mm long and bears one or two purple flowers in up to five umbels on short stalks. The flowers have lance-shaped sepals about 2 mm wide and broad, elliptic petals with a fringe; there are six stamens and a style about 3 mm long. Flowering occurs in November and December. Seeds are spherical, about 1.5 mm in diameter, with a pale straw-coloured covering (aril). It was first described by Robert Brown in 1810; the name isantherus means "equal anthers." The plant grows in mossy grasslands on granite hills in the Jarrah Forest and Warren bioregions. It is listed as Priority Four by the Western Australian government, meaning it is rare or near threatened.