Catalogue no.:	V-1239145
Taxon:	Sonchus arvensis L.
Label:	Sonchus arvensis
Family:	Asteraceae
Collector:	K.J. Lönnroth
Date:	1845
Country:	Sweden
Landskap:	Södermanland
Socken:	Kung Karl
Locality:	Westmanland: Kungsör
Remarks:	forma involucris nudis l. subnudis (= v. laevipes Koch)