| Classification | Apiaceae: Sium | 
| Harvard University Herbaria Barcode(s) | 00217214 | 
| Type Status | Syntype | 
| Collector | D. C. Eaton | 
| Country | United States of America | 
| State | Connecticut | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Connecticut: New Haven County: New Haven | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/45cd5755-4823-45cc-bea0-cbc73d6b7bcd | 
| Harvard University Herbaria Barcode | 00217214 | 
| Herbarium | GH | 
| Family | Apiaceae | 
| Type Status | Syntype | 
| Syntype of | Sium carsonii Durand ex A. Gray | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Sium carsonii Durand ex A. Gray) Manual (Gray), ed. 5 1867. 196. | 
| Sex | not determined | 
| Phenology | FlowerAndFruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |