Conostylis seorsiflora is a rhizomatous, tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south of Western Australia.

[2][3][4] Conostylis seorsiflora was first formally described in 1859 by Ferdinand von Mueller in his Fragmenta phytographiae Australiae, from specimens collected by George Maxwell near the Gardiner River.

[6] In 1987, Stephen Hopper described 3 subspecies of C. seorsifolia in the Flora of Australia and the names are accepted by the Australian Plant Census:[3] This species of conostylis grows in winter-wet flats in heath and mallee near the south coast of Western Australia between Mount Barker and the Stirling Range in the Avon Wheatbelt, Esperance Plains and Mallee bioregions of southern Western Australia.

[2][3] Subspecies longissima grows in heath and mallee scrub in disjunct population near the south coast, subspecies seorsifolia grows in damp places, along swamp margins and temporary streams from the Stirling Range to near Israelite Bay and subspecies trichophylla is only known from the type location 13.4 km (8.3 mi) south-east of Tincurrin.

Conostylis seorsiflora is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions but subsp.