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Sabaii, T., Zarre, S. & Podlech, D.: Two new species of Astragalus sect. Anthylloidei (Fabaceae). — Willdenowia 37: 297–304. — ISSN 0511-9618; © 2007 BGBM Berlin-Dahlem. doi:10.3372/wi.37.37118 (available via http://dx.doi.org/)Astragalus fissicalyx and A. veiskaramii are described as species new to science and illustrated. Based on gross morphology and petiole anatomy the relationships between the new species and their closest relatives, i.e. A. diopogon and A. anthylloides, respectively, are discussed.
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Sabaii et al. (2007) studied this question.
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