Irving Widmer Bailey
| Irving Widmer Bailey | |
|---|---|
| Bailey in 1920 | |
| Born | August 15, 1884 | 
| Died | May 16, 1967 (aged 82) | 
| Alma mater | Harvard College | 
| Scientific career | |
| Fields | Botany | 
| Institutions | Arnold Arboretum Gray Herbarium | 
| Doctoral students | Elso Barghoorn | 
Irving Widmer Bailey (August 15, 1884 – May 16, 1967) was an American botanist known for his work in plant anatomy. He was a faculty member at Harvard University for nearly his entire career, working principally at the Harvard University Herbaria.