Balos, Mehmet MarufGeçit, Musa2025-09-152025-09-1520230003-3847https://doi.org/10.5735/085.060.0130https://hdl.handle.net/20.500.12514/9295Allium calyanense Balos & Geçit (Amaryllidaceae) is described as a new species from Van Province, eastern Anatolia, Turkey. Diagnostic characteristics, a comprehensive description, photographs of the species and a distribution map are provided. Based on morphology, it belongs to Allium subgen. Polyprason sect. Scorodon. It resembles A. anacoleum, A. capitellatum and A. microspathum but morphologically differs from them by e.g. bulb size, stem length, leaf sheath, leaf shape, perigon colour, size and colour of outer and inner tepals, and different filaments. © 2023 Elsevier B.V., All rights reserved.en10.5735/085.060.0130info:eu-repo/semantics/closedAccessArticle2-s2.0-85180437407