Crataegus × grignonensis

Crataegus × grignonensis
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Crataegus
Species:	C. × grignonensis
Binomial name
Crataegus × grignonensis

Crataegus × grignonensis is a hybrid hawthorn commonly known as "Grignon Hawthorn". The hybrid originated as a seedling of Crataegus mexicana^[1]. It is an excellent small ornamental tree up to about 5 meters in height, with deep red fruit that contain 1 or 2 pyrenes^[1].

Taxonomy

The Latin binomial Crataegus × grignonensis, or the equivalent Crataegus grignonensis appears to have never been validly published^[1][2] under the rules of the International Code of Botanical Nomenclature.

References and external links

1. ^ ^{a b c} *Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
2. ^ www.ipni.org The International Plant Names Index