You selected Crataegus succulenta var. macracantha (Lodd. ex Loudon) Eggl. This is a synonym for:

Accepted scientific name:
Crataegus macracantha Lodd. ex Loudon (accepted name) 1 literature reference for Crataegus macracantha Lodd. ex Loudon
Synonyms: -
Infraspecific taxon: Crataegus macracantha var. colorado (Ashe) Kruschke
Crataegus macracantha var. divida (Sarg.) Kruschke
Crataegus macracantha var. integriloba (Sarg.) Kruschke
Crataegus macracantha var. macracantha
Crataegus macracantha var. minor Loudon
Crataegus macracantha var. neofluvialis (Ashe) Eggl.
Crataegus macracantha var. occidentalis (Britton) Eggl.
Crataegus macracantha var. pertomentosa (Ashe) Kruschke
Crataegus macracantha var. rhombifolia (Sarg.) Eggl.
Crataegus macracantha var. succulenta (Schrad. ex Link) Eggl.
Crataegus macracantha var. succulenta (Schrad. ex Link) Rehder
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Rosales
Family Rosaceae
Genus Crataegus
Distribution: -
Additional data: -
Source database: IOPI-GPC, 10.0, Aug 2007
Latest taxonomic scrutiny: R. Pankhurst, 2009
Online resource: -
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:2ba02d54-60a7-102d-be47-00304854f810:ac2010