Merendera is a small cormous European and Asian genus in the Colchicaceae family sometimes included in Colchicum. They differ by having no tube, just six separate segments. Merendera is a winter growing genus with funnel shaped white, pink, or purple flowers. Some species are fall blooming and some bloom in the spring.
In the paper A phylogenetic analysis of the genus Colchicum L. (Colchicaceae) based on sequences from six plastid regions (Persson et al. 2011), the genus Merendera was discovered to be polyphyletic (meaning the species have evolved from separate ancestors). Thus, many authorities (The Plant List, Kew, et cetera) consider Merendera to be synonymous with Colchicum. In lieu of the evidence suggested by this paper, we have included Merendera in Colchicum.
Merendera jolantae Czerniak. is a synonym of Colchicum robustum (Bunge) Stef.
Merendera kurdica Bornm. is a considered to be a synonym of Colchicum kurdicum (Bornm.) Stef.
Merendera mirzoevae Gabrieljan is considered to be a synonym of Colchicum mirzoevae (Gabrieljan) K.Perss.
Merendera montana (L.) Lange syn. Merendera bulbocodioides Willd., Colchicum montanum L.
Merendera raddeana Regel is considered a synonym of Colchicum raddeanum (Regel) K.Perss.
Merendera sobolifera C.A.Mey. syn. Bulbocodium soboliferum (C.A.Mey.) Heynh., syn. Colchicum soboliferum (C.A.Mey.) Stef.