Project 3190: R. A. Ufimov, T. A. Dickinson. 2020. Infrageneric nomenclature adjustments in CrataegusL. (Maleae, Rosaceae). Phytologia. 102 (3):177-199.
Viewing Folio F930 Crataegus L. subg. Americanae El Gazzar sect. Coccineae Loudon ser. Aestivales (Sarg.) Rehder containing 2 media.

This series comprises C. opaca, C. aestivalis, and C. rufula (JBP 2015 in FNA).

Folio Media

M584575
Crataegus opaca Hook & Arn., 1835
Leaf
M584679
Crataegus opaca Hook & Arn., 1835
Leaf