Reference

Bernard R. Baum, J. L. Yang, C. Yen (1995): Taxonomic separation of Kengyilia (Poaceae: Triticeae) in relation to nearest related Roegneria, Elymus, and Agropyron, based on some morphological characters – Österreichische Botanische Zeitschrift = Plant Systematics and Evolution – 194: 123 - 132.