Spetaea is a monotypic genus of bulbous flowering plants in the family Asparagaceae but is also treated as the family Hyacinthaceae. The only known species Spetaea lachenaliiflora is endemic to South Africa and is only found in the south-west of the Cape Province in South Africa. Prior to 2003, it was incorrectly known as Scilla plumbea.

Spetaea lachenaliiflora grows from underground bulbs which have a leathery dark brown outer tunic. The linear leaves are produced at the same time as the flowers; they are smooth, green and fleshy. The flowers are borne on an upright stem (peduncle) in a many-flowered raceme which forms a narrow cylindrical shape. Individual flowers have six bright blue tepals which are joined at the base for about two thirds of their length producing a narrow bell shape. The tepals persist into the fruiting stage. The stamens have filaments joined to each other at the base and to the base of the tepals. They have a prominent whitish hilum which distinguishes the species from related genera. Spetaea lachenaliiflora is found only in the west of Cape Province, South Africa, where it is found in moist areas and along streams in the Bains Kloof and Du Toits Kloof Mountains.