| Harvard University Herbaria Barcode(s) | 00263103 | 
| Type Status | Syntype | 
| Collector | E. Coues | 
| Country | United States of America | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America | 
| Locality | N. Boundary, Frenchman Creek to R. Mts [Rocky Mountains] | 
| Date Collected | 1874 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c7d7e071-101e-4405-8a7b-7b65ace0c871 | 
| Harvard University Herbaria Barcode | 00263103 | 
| Herbarium | GH | 
| Type Status | Syntype | 
| Syntype of | Helianthus tuberosus var. subcanescens A. Gray | 
| Verified by | W. T. Kittredge | 
| Date Determined | 2007 | 
| Taxon Reference | (for  Helianthus tuberosus var. subcanescens A. Gray) Syn. Fl. N. Amer. 1884. 1(2): 280. | 
| Determination | Helianthus nuttallii subsp. rydbergii (Britton) R. W. Long | 
| Determination Remarks | [current name] | 
| Determination | Helianthus tuberosus var. subcanescens A. Gray | 
| Determined by | A. Gray | 
| Determination Remarks | [A. Gray (scripsit)] [current name] | 
| Annotation Text | prob ally Syn. Fl. N. Amer. | 
| Determination | Helianthus rydbergii Britton | 
| Determined by | R. W. Long | 
| Date Determined | 1959 | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |