| Name | Lassen, Per |
| Date of birth | 1942 |
| Remarks | [author note: Fabaceae, especially Trifolieae and Loteae, Mediterranean flora] [collector note: LD] |
| ASA Botanist ID | 116413 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f823d411-9ef0-4a11-a19d-6cc1cf15070f |
| Author name | Lassen |
| B & P Author Abbrev. | Lassen |
| Standard/Label Name | P. Lassen |
| Full Name | Lassen, Per |
| Geography Author | Sweden |
| Geography Collector | Sweden |
| 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 |