| Classification | Lycopodiaceae: Diphasiastrum |
| Classification 1 | Lycopodiaceae: Lycopodium |
| Harvard University Herbaria Barcode(s) | 02163811 |
| Collector | R. R. Tatnall |
| Collector number | 3995 |
| Country | United States of America |
| State | Maryland |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maryland: Wicomico County |
| Locality | at Nassawongo Creek, 8 miles east of Salisbury. |
| Date Collected | 1938-09-09 |
| Habitat | Woods |
| Container | Flora of the Peninsula of Delaware, Maryland and Virginia |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/651fe52f-fe65-40b5-83d8-8df6dd7ddacb |
| Harvard University Herbaria Barcode | 02163811 |
| Herbarium | GH |
| Family | Lycopodiaceae |
| Determination | Diphasiastrum tristachyum (Pursh) Holub |
| Determination Remarks | [filed under] [current name] |
| Family | Lycopodiaceae |
| Determination | Lycopodium tristachyum Pursh |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |