You selected Cirsium rigens Spreng. This is a synonym for:

Accepted scientific name:
Cirsium oleraceum (L.) Scop. (provisionally accepted name)
Synonyms:
Carduus acanthifolius Lam. (synonym)
Carduus oleraceus (L.) Vill. (synonym)
Carduus parviflorus L. (synonym)
Carduus rigens Dryand. ex Aiton (synonym)
Carduus tataricus L. (synonym)
Cirsium braunii Nyman (synonym)
Cirsium flavescens Lam. (synonym)
Cirsium pallens DC. (synonym)
Cirsium parviflorum DC. (synonym)
Cirsium parviflorum Schleich. ex Steud. (synonym)
Cirsium praemorsum (synonym)
Cirsium rigens Spreng. (synonym)
Cirsium subalatum Gaudin (synonym)
Cirsium thomasii Nägeli (synonym)
Cirsium variabile Moench (synonym)
Cnicus bracteatus Gilib. (synonym)
Cnicus oleraceus L. (synonym)
Cynara colorata Stokes (synonym)
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Asterales
Family Asteraceae
Genus Cirsium
Distribution: -
Additional data: Data Providers: Govaerts World Compositae Checklist A-G, IPNI, Tropicos, Euro+Med. GCC LSID: urn:lsid:compositae.org:names:88C31644-4CE4-4D8A-A68A-25324E5E189F
Source database: GCC, 1 (Beta), Nov 2009
Latest taxonomic scrutiny: Flann C., 12-Aug-09
Online resource: -
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:1eef3168-60a7-102d-be47-00304854f810:ac2010