Howard S. Irwin
| Howard S. Irwin PhD | |
|---|---|
| Irwin circa 1971 | |
| Born | March 28, 1928 Louisville, Kentucky, U.S. | 
| Died | January 23, 2019 (aged 90) Truro, Massachusetts | 
| Nationality | American | 
| Spouse(s) | Marian Campbell Sterne Irwin Anne Lieb Wolff Irwin | 
| Scientific career | |
| Fields | Botany | 
| Thesis | Monographic studies in Cassia. I. Section Xerocalyx. 1960 | 
| Author abbrev. (botany) | H.S.Irwin | 
Howard Samuel Irwin Jr. (March 28, 1928 – January 23, 2019) was an American botanist and taxonomist who specialized in the genus Cassia and worked as an administrator at the New York Botanical Garden, Long Island University, and the Brooklyn Botanic Garden.