You selected Crepis agrestis Waldst. & Kit. ex Willd. This is a synonym for:

Accepted scientific name:
Crepis capillaris (L.) Wallr. (provisionally accepted name)
Synonyms:
Berinia pinnatifida Sch.Bip. (synonym)
Berinia stricta Sch.Bip. (synonym)
Crepis agrestis Waldst. & Kit. ex Willd. (synonym)
Crepis bauhiniana Tausch (synonym)
Crepis candollei Sch.Bip. (synonym)
Crepis cooperi A.Gray (synonym)
Crepis diffusa DC. (synonym)
Crepis druceana Murr ex Druce (synonym)
Crepis gaditana Boiss. (synonym)
Crepis hastata Kit. (synonym)
Crepis leiosperma DC. (synonym)
Crepis linifolia Thuill. (synonym)
Crepis longe-pinnatifida (synonym)
Crepis lusitanica Boiss. ex Sch.Bip. (synonym)
Crepis nemorum Pourr. ex Willk. & Lange (synonym)
Crepis parviflora Moench (synonym)
Crepis pinnatifida Willd. (synonym)
Crepis polymorpha Wallr. (synonym)
Crepis umbellata Thuill. (synonym)
Crepis uniflora Thuill. (synonym)
Crepis variabilis Krock. (synonym)
Crepis virens L. (synonym)
Lapsana capillaris L. (synonym)
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Asterales
Family Asteraceae
Genus Crepis
Distribution: -
Additional data: Data Providers: African Flowering Plants Database, SANBI, New Zealand Plant Name Database, Govaerts World Compositae Checklist A-G, IPNI, MesoAmericana, Tropicos, Euro+Med, Flora of Tasmania Online, Australian Capital Territory Census, New South Wales Fl. GCC LSID: urn:lsid:compositae.org:names:B4FE08CB-95C3-4254-980F-DCAF6BF71719
Source database: GCC, 1 (Beta), Nov 2009
Latest taxonomic scrutiny: Flann C., 14-Nov-09
Online resource: -
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:1f3c93f4-60a7-102d-be47-00304854f810:ac2010