Taxon: Crataegus x grignonensis Mouill. Genus: Crataegus
Family: Rosaceae.
Nomen number: 12104.
Place of publication: J. Soc. Natl. Hort. France sér. 3, 12:153. 1890.
Comments: = C.pubescens × C. crus-galli?\; same pedigree as C. ×lavallee.
Name verified on: 02-Dec-1993 by Systematic Botany Laboratory. Last updated: 02-Mar-2006.
Species priority site is: Plant Gene Resources of Canada (PGRC).
NO ACCESSIONS IN PGRC UNDER THIS NAME.


References:

• A. Rehder. 1949. Bibliography of cultivated trees and shrubs. (Rehder) [= C. pubescens × C. crus-galli].
  
• G. Krussmann. 1984. Handbuch de Laubgeholze, Engl. translat. (Krussmann) [= C. pubescens × C. crus-galli].
  
• Liberty Hyde Bailey Hortorium. 1976. Hortus third. (Hortus 3)
  
• NRCS. 1995. USDA/NRCS PEAS database of erosion-control plants. (PEAS)
  
• F. Encke et al. 1984. Zander: Handwörterbuch der Pflanzennamen, ed. 13. (Zander ed13)
  
• R. E. Cinovskis. 1971. Crataegi Baltici. 220.