Ehrend. & Schönb.-Tem. (Ehrend.) 1989 - Sch�Nbeck-Temesy E, Ehrendorfer F (1989) The perennial taxa ofCrucianella (Rubiaceae) in SW. Asia and their eco-geographical differentiation. Plant Systematics and Evolution 165(1-2): 101-136. doi: 10.1007/BF00936040.
There is no corrections for Crucianella gilanica subsp. hirsuta yet.