Compositae Working Group (CWG) (2021). Global Compositae Database. Porophyllum crassifolium S.Watson. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1106046 on 2023-03-25
original description(1889). Proc. Amer. Acad. Arts 24 page(s): 57 [details]
original description(ofPorophyllum leptophyllum I.M.Johnst.)Johnston, I.M. (1924). Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Botany (The Vascular Plants). <em>Proc. Calif. Acad. Sci. ser. 4.</em> 12, 951-1218. page(s): 1210 [details]
original description(ofPorophyllum tridentatum var. crassifolium (S.Watson) I.M.Johnst.)Johnston, I.M. (1924). Expedition of the California Academy of Sciences to the Gulf of California in 1921. The Botany (The Vascular Plants). <em>Proc. Calif. Acad. Sci. ser. 4.</em> 12, 951-1218. page(s): 1211 [details]
Present Inaccurate Introduced: alien Containing type locality
From other sources
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record S. Watson [CONABIO] S. Watson [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Porophyllum crassifolium S. Watson [CONABIO] Porophyllum crassifolium S. Watson [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Proceedings of the American Academy of Arts and Sciences 24: [Tropicos] [details] LSID urn:lsid:compositae.org:names:1C3C42AB-C590-438D-B1E8-B67B6CB5A00A [details]