Compositae Working Group (CWG) (2021). Global Compositae Database. Sonchus pycnocephalus R.E.Fr.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1205808 on 2025-04-03
original description(1925). Acta Horti Berg. 8 page(s): 114 [details]
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record R. E. Fr. [Cichorieae Portal] R.E. Fr. [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Sonchus pycnocephalus R. E. Fr. [Cichorieae Portal] Sonchus pycnocephalus R.E. Fr. [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Acta Horti Bergiani 8: [Tropicos] R. E. Fr. in Acta Horti Berg. 8. 1925 [Cichorieae Portal] [details] LSID urn:lsid:compositae.org:names:0E832BB9-B1AA-437F-9BAC-D406A87FAC2E [details] Taxonomy ori:FTA [details] Type material [Zimbabwe] "Bwana Mkubwa", Aug 1911, R. E. Fries 489 (UPS) [details]