Castellia Tineo, Pl. Rar. Sicil. 2: 17. 1846. Sultan & Stewart, Grasses W. Pak. 2:212. 1959; Bor, Grasses Burma Ceyl. Ind. Pak. 528. 1960; Bor in Rech.f., Fl. Iran. 70:87. 1970; Stace in Tutin et al., Fl. Eur. 5:157. 1980.
Annuals. Leaf-blades flat. Inflorescence a spike or raceme or with a few simple racemose branches below. Spikelets 6-12-flowered; glumes unequal, ± keeled, acute to obuse densely tuberculate; palea almost as long as the lemma.
A monotypic genus in the Mediterranean region extending to Pakistan.