You selected Carduus pulcherrimus Rydb. This is a synonym for:

Accepted scientific name:
Cirsium pulcherrimum (Rydb.) K.Schum. (provisionally accepted name)
Synonyms:
Carduus pulcherrimus Rydb. (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. GCC LSID: urn:lsid:compositae.org:names:477F4B16-D25C-4EF9-A929-0E3ECCCA697D
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:1eeee41a-60a7-102d-be47-00304854f810:ac2010