Tenicroa is a former genus in the Hyacinthaceae family with species native to South Africa. Many of the species in this genus have been included in many other genera in the past including: Albuca, Ornithogalum, Anthericum, Urginea, Sypharissa, Pilasia. and Phalangium. Goldblatt, Manning and Fay in A Revised Generic Synopsis of Hyacinthaceae in Sub-Saharan Africa, Based on Molecular Evidence, including New Combinations and the New Tribe Pseudoprospereae included this genus as a group in the genus Drimia. You still sometimes see these species listed under Tenicroa. Flowers are in a simple wiry raceme, anthers are exserted and filaments longer than 2.5 mm, and the leaf bases are enclosed in an elongated banded sheath in this group. Most of the short lived flowers in this group are white with green keels, often flushed purple, and fragrant.
Tenicroa exuviata , syn. Drimia exuviata , Anthericum exuviatum grows on rocky slopes and flats, often in clay or granite from Namaqualand to Grahamstown. Plants range in size from 20 to 80 cm. It differs from the other species by having leaves that are firm and leathery, erect and usually as long as the raceme.
Tenicroa filifolia , syn. Drimia filifolia , Anthericum filifolium is found on sandy slopes and flats in a wide part of the winter rainfall area of South Africa. Plants grow from 10 to 30 cm. high. It flowers spring to summer. Photo by Cameron McMaster taken in the Komsberg, part of the Roggeveld.
Tenicroa fragrans , syn. Drimia fragrans , Anthericum fragrans grows on sandy flats in the northwest Cape. Plants grow 30 to 80 cm. high and the leaves are wiry and enclosed in a papery neck. Flowers are in an elongated raceme with elliptical tepals.
Tenicroa multifolia , syn. Drimia multifolia , Urginea multifolia grows to about 15 cm. tall and has filiform, coiled leaves. It is found on rocks and poorly drained soils from southern Namibia, Namaqualand into the western Karoo and the southwest Cape. Photos taken by Cameron McMaster near Bredasdorp in the Overberg.
Tenicroa nana , syn. Drimia nana has wiry leaves enclosed in a sheath and mauve flowers with green and white patches. It is found in Namaqualand and flowers in summer. At least one accession described the habitat as shady mossy ledges in the Kamiesberg.
Drimia groups besides Tenicroa in the expanded genus: Drimia - Litanthus - Rhadamanthus - Urginea
The Drimia index includes a table with all the species in the subgroups in this genus listed by name.