| Classification | Lamiaceae: Pycnanthemum |
| Harvard University Herbaria Barcode(s) | 00001521 |
| Type Status | Holotype |
| Collector | M. L. Fernald & B. H. Long |
| Collector number | 7595 |
| Country | United States of America |
| State | Virginia |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Virginia: Southampton County |
| Locality | Along Blackwater River, southeast of Ivor |
| Date Collected | 1937-09-16 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3de4139b-789b-4724-b601-568136e7f8cd |
| Harvard University Herbaria Barcode | 00001521 |
| Herbarium | GH |
| Family | Lamiaceae |
| Type Status | Holotype |
| Holotype of | Pycnanthemum umbratile Fernald |
| Verified by | J. Hamer |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Pycnanthemum umbratile Fernald) Rhodora 1945. 47: 179, plate 906. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
