| Name | Hamer, Jon J. |
| First date flourished | 1990 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e970859c-b827-4d2b-a9d6-eaadb87f80c7 |
| Standard/Label Name | J. J. Hamer |
| Full Name | Hamer, Jon J. |
| Geography Determiner | United States of America |
| Specialty Determiner | Spermatophytes |
| Citation as Determiner | specimen (GH) Pycnanthemum californicum Torr. ex Durand |
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