| Name | Olsen, John S. |
| Date of birth | 1950 |
| Remarks | [author note: Asteraceae (Verbesina, Zaluzania)] [collector note: SWMT] |
| ASA Botanist ID | 128939 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3c100507-b3bc-402c-a5e2-f2c7ad084ffc |
| Variant name | John S. Olsen |
| Author name | Olsen |
| B & P Author Abbrev. | Olsen |
| Standard/Label Name | J. S. Olsen |
| Full Name | Olsen, John S. |
| Geography Author | United States of America |
| Geography Collector | United States of America |
| Specialty Author | Spermatophytes |
| Citation as Author | Authors of Plant Names. Royal Botanic Gardens, Kew |
| Citation as Author | Index Herbariorum. Part 1: The Herbaria of the World. Eighth Edition. Bronx, NY |
| Citation as Collector | Index Herbariorum, ed. 8 |