Compositae Working Group (CWG) (2021). Global Compositae Database. Aster alpigenus var. haydenii (Porter) Cronquist. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1242752 on 2025-03-24
Contributed data: Basionym Data only shown for fields conflicting with the consensus taxon record Aster haydenii [Govaerts World Compositae Checklist A-G] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Aster alpigenus (Torr. & A. Gray) A. Gray var. haydenii (Porter) Cronquist [Preliminary Checklist of North American Compositae] Aster alpigenus A.Gray var. haydenii (Porter) Cronquist [IPNI] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Vasc. Pl. Pacific NorthW. 5 [Govaerts World Compositae Checklist A-G] Vascular Plants of the Pacific Northwest 5: [Tropicos] [details] LSID urn:lsid:compositae.org:names:E88F415E-22B5-4FD7-9039-BFB95B32F361 [details]