Astragalus ihsancalisii Dönmez & Uğurlu (Fabaceae) is described as a new species from Erzurum province in E Turkey. The new species belongs to A. sect. Incani DC. and is similar and possibly related to A. glaucophyllus Bunge and A. guzelsuensis F. Ghahrem. & al. from Turkey and A. siahcheshmehensis Maassoumi & Podlech from Iran. Astragalus ihsancalisii is clearly distinguished from those three species by flower number per raceme, bract size, pedicel length, standard length and legume beak length, among other characters. Diagnostic characters are given and their taxonomic importance is discussed. Photographs of A. ihsancalisii in the field are presented. In addition, SEM micrographs of leaf and legume surfaces of the new species and A. glaucophyllus and A. guzelsuensis are provided for comparison. The conservation status of A. ihsancalisii is also assessed according to field observations.

Citation: Dönmez A. A. & Uğurlu Aydın Z. 2018: Astragalus ihsancalisii (Fabaceae), a new species from Erzurum province, E Turkey. – Willdenowia 48: 399 – 404. doi: https://doi.org/10.3372/wi.48.48309

Version of record first published online on 9 November 2018 ahead of inclusion in December 2018 issue.