| Classification | Apocynaceae: Apocynum | 
| Harvard University Herbaria Barcode(s) | 02178189 | 
| Collector | H. L. Mason | 
| Collector number | 12,104 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Napa County | 
| Locality | Wooden Valley | 
| Date Collected | 1939-05-18 | 
| Habitat | Open wooded slopes with Quercus lobata and Aesculus californica | 
| Project | Plants on Edge/Endless Forms TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3b6e96cf-d7c5-415e-af3d-8288164eebce | 
| Harvard University Herbaria Barcode | 02178189 | 
| Herbarium | GH | 
| Family | Apocynaceae | 
| Determination | Apocynum ×floribundum Greene | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |