| Classification | Polypodiophyta: Thelypteridaceae: Sphaerostephanos | 
| Harvard University Herbaria Barcode(s) | 02403873 | 
| Other Number | Philippine National Herbarium: PNH 16587 [] | 
| Collector | G. E. EdaƱo | 
| Country | Philippines | 
| State | Ilocos Norte | 
| Geography | Asia: Southeast Asia (Region): Philippines: Luzon: Ilocos Norte | 
| Locality | Mt. Quebrada | 
| Date Collected | 1953-02-26 | 
| Verbatim Elevation | 5350 ft | 
| Habitat | on slopes in forest | 
| Project | All Asia Vascular Plants TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/46d703dc-36b0-46ad-a84e-cf6c58cc4b60 | 
| Harvard University Herbaria Barcode | 02403873 | 
| Herbarium | A | 
| Family | Thelypteridaceae | 
| Determination | Sphaerostephanos productus (Kaulfuss) Holttum | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |