You selected Carduus spinosissimus Steud. This is a synonym for:

Accepted scientific name:
Ptilostemon echinocephalus (Willd.) Greuter (provisionally accepted name)
Synonyms:
Carduus echinocephalus Pers. ex Steud. (synonym)
Carduus spinosissimus Steud. (synonym)
Carduus tauricus Boeber ex Georgi (synonym)
Chamaepeuce echinocephala (Willd.) DC. (synonym)
Chamaepeuce wachtangia (Woronow) Grossh. (synonym)
Cirsium echinocephalum (Willd.) Fisch. (synonym)
Cirsium echinocephalum (Willd.) M.Bieb. (synonym)
Cirsium wachtangia Woronow (synonym)
Cnicus echinocephalus Willd. (synonym)
Lamyra echinocephala (Willd.) Tamamsch. (synonym)
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Asterales
Family Asteraceae
Genus Ptilostemon
Distribution: -
Additional data: Data Providers: Govaerts World Compositae Checklist A-G, IPNI, Tropicos, Euro+Med. GCC LSID: urn:lsid:compositae.org:names:C20F2D98-3CD8-4CB0-B5E2-78F1BC82516B
Source database: GCC, 1 (Beta), Nov 2009
Latest taxonomic scrutiny: Flann C., 15-Aug-09
Online resource: -
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:1e945cde-60a7-102d-be47-00304854f810:ac2010