| Name | Zwak, J. |
| First date collected | 1987 |
| Remarks | [collector note: col. with J. Chvastek; PR] |
| ASA Botanist ID | 121076 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8b381634-8f03-4a3e-bde9-d072d37e5ff0 |
| Standard/Label Name | J. Zwak |
| Full Name | Zwak, J. |
| Geography Collector | Mexico |
| Specialty Collector | Phanerogams |
| Citation as Collector | Acta Mus. Richnov. Sect. Nat. 7(1): 38. 2000 |
| Member of teams/groups | |
| Collector Teams: | J. Chvastek & J. Zwak |