| Name | Barr, Claude Arno |
| Date of birth | 1877 |
| Remarks | [collector note: South Dakota (col. 1952): CAS] |
| ASA Botanist ID | 139730 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3f804af5-54e5-47f2-a08e-869cb601b477 |
| Variant name | Claude Arno Barr |
| Standard/Label Name | C. A. Barr |
| Full Name | Barr, Claude Arno |
| Geography Collector | United States of America |
| Specialty Collector | Phanerogams |
| Citation as Collector | Amer. Midl Naturalist 55: 506. 1956 |
| Holdings | Search for specimens collected by C. A. Barr |
| Collections in | [no date] (3), 1938 (16), 1939 (3), 1940 (4), 1941 (2) |