| Classification | Betulaceae: Betula |
| Harvard University Herbaria Barcode(s) | 00033727 |
| Type Status | Type |
| Collector | J. F. Rock |
| Collector number | 13283 |
| Country | China |
| State | Xizang (Tibet) |
| Geography | Asia: East Asia (Region): China: Xizang (Tibet) |
| Locality | Kokonor Region: Koko Gorge, alt. 11000-11500 feet |
| Date Collected | 1925-10-** |
| Elevation | 3352 - 3505 m |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/839527af-3bd4-4113-b421-2aa032ed78d0 |
| Harvard University Herbaria Barcode | 00033727 |
| Herbarium | A |
| Family | Betulaceae |
| Type Status | Type |
| Type of | Betula japonica var. rockii Rehder |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Betula japonica var. rockii Rehder) J. Arnold Arbor. 1928. 9: 25. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
