| Name | Yook, Chang Soo |
| First date flourished | 1996 |
| Remarks | [author note: College of Pharmacy, Kyung Hee University, Seoul 130-701, South Korea] [collector note: Collected with Jae Gil Kim: specimens deposited in the herbarium of the College of Pharmacy, Chungbuk National University, Cheong-ju 360-060, South Korea] |
| ASA Botanist ID | 115059 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e1ba71d1-e698-46e7-b21a-2908861e5728 |
| Variant name | Chang Soo Yook |
| Author name | Yook |
| B & P Author Abbrev. | Yook |
| Standard/Label Name | C. S. Yook |
| Full Name | Yook, Chang Soo |
| Geography Author | South Korea |
| Geography Collector | South Korea |
| Specialty Author | Spermatophytes |
| Specialty Collector | Phanerogams |
| Citation as Author | J. Korean Pharmacogn. 27: 342-346. 1996 |
| Citation as Collector | Korean Journal of Pharmacognosy. (Sengyakhak-Hoeji). Seoul |
| Member of teams/groups | |
| Collector Teams: | J. G. Kim & C. S. Yook |