Project 2523: T. A. Dickinson, B. X. Yan, S. Han, M. Zarrei. 2021. Niche Shifts, Hybridization, Polyploidy and Geographic Parthenogenesis in Western North American Hawthorns (Crataegus subg. Sanguineae, Rosaceae). Agronomy. 11 (11):2133.
Viewing Crataegus chrysocarpa Ashe (tetraploid) containing 6 media.

Crataegus subg. Americanae El Gazzar sect. Coccineae Loudon ser. Rotundifoleae (Egglest. ex Egglest.) Rehder; Crataegus chrysocarpa individuals shown to be tetraploid by flow cytometry (Talent & Dickinson 2005).

Folio Media

M430620
Crataegus chrysocarpa Ashe
Entire leaf
M430621
Crataegus chrysocarpa Ashe
Entire leaf
M430622
Crataegus chrysocarpa Ashe
Entire leaf
M430662
Crataegus chrysocarpa Ashe
Entire leaf
M430663
Crataegus chrysocarpa Ashe
Entire leaf
M430664
Crataegus chrysocarpa Ashe
Entire leaf