| Classification | Lamiaceae: Pycnanthemum | 
| Harvard University Herbaria Barcode(s) | 01596179 | 
| Collector | A. A. Heller & E. G. Halbach | 
| Collector number | 649 | 
| Country | United States of America | 
| State | Pennsylvania | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Pennsylvania: York County | 
| Locality | Eozoic, At McCall's Ferry | 
| Date Collected | 1892-10-15 | 
| Container | Flora of Southern Pennsylvania. | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ad195f2b-b363-478f-b076-a5d746783573 | 
| Harvard University Herbaria Barcode | 01596179 | 
| Herbarium | GH | 
| Family | Lamiaceae | 
| Determination | Pycnanthemum tenuifolium Schrader | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |