A synopsis of the sect. Hymenocoleus Bunge, sect. Hymenostegis Bunge, and sect. Macrophyllium Boiss. belonging to Astragalus L. in Turkey is given based on a revisional study carried out in Turkey. As a result of this study, an account of 19 species including keys and general distribution as well as their conservation status in Turkey is given. It is determined that A. narmanicus Karaman & Aytac is new to science and A. expetitus Maassoumi, A. pereshkhoranicus Maassoumi & F. Ghahrem., and A. marivanensis Maassoumi & Podlech do not exist in Turkey. Additionally, the name of the sect. Hymenocoleus is preserved.