From other sources
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record
Engelm. & A. Gray [CONABIO]
Engelm. & A. Gray [Flora del Conosur]
Engelm. & A. Gray [Preliminary Checklist of North American Compositae]
Engelm. & A. Gray [Tropicos]
Engelm. & Gray [IPNI] [details]
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record
Helianthus praecox Engelm. & A. Gray [CONABIO]
Helianthus praecox Engelm. & A. Gray [Flora del Conosur]
Helianthus praecox Engelm. & A. Gray [Preliminary Checklist of North American Compositae]
Helianthus praecox Engelm. & A. Gray [Tropicos]
Helianthus praecox Engelm. & Gray [IPNI] [details]
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record
Boston J. Nat. Hist. 5: 221 (1847) [Flora del Conosur]
Boston Journal of Natural History 5(2): [Tropicos] [details]
LSID urn:lsid:compositae.org:names:4462359C-44E0-4DCA-B144-0E0466B31537 [details]
Taxonomy Oct 1845 [details]
Type material 1843, 97, F.J.Lindheimer, null MO [details]
From editor or global species database