Crataegus ambigua
Synonymy
Source: Kurtto, A. (2009+): Rosaceae (pro parte majore). In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Crataegus ambigua in Bull. Soc. Imp. Naturalistes Moscou 31: 12. 1858
- =Crataegus helenae in Bot. Žurn. (Kiev) 9(2): 57. 1952 [non Crataegus helenae]
Content
Bibliography
B. Christensen, K. I. 1992: Revision of Crataegus Sect. Crataegus and Nothosect. Crataeguineae (Rosaceae-Maloideae) in the Old World. – Syst. Bot. Monogr. 35: 1-199
C. Takhtajan, A. L. 1958: Flora Armenii 3. – Erevan: Armenian Academy of Sciences (as Crataegus atrosanguinea)
F. Mosyakin, S. L. & Fedoronchuk, M. M. 1999: Vascular plants of Ukraine. A nomenclatural checklist. – Kiev: M. G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine (as Crataegus helenolae)
G. Prokudin, J. N. 1987: Opredelitel’ vysših rastenij Ukrainy. – Kiev: Naukova Dumka (as Crataegus helenolae)