Compositae Working Group (CWG) (2021). Global Compositae Database. Ambrosia helenae Rouleau. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1131096 on 2024-05-18
original description(1944). Naturaliste Canad. 71 page(s): 272 [details]
From other sources
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Ambrosia ×helenae Rouleau [IPNI] [details] LSID urn:lsid:compositae.org:names:88D31FDC-ADF5-4894-85DE-70035C37555F [details]