| Name | Iris hexagona var. flexicaulis (Small) R. C. Foster |
| Authorship | (Small) R. C. Foster |
| Rank | Variety |
| Placed in | Iris hexagona Walter |
| Citation | 1937 Contr. Gray Herb. 119: 50–51 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Iris hexagona var. flexicaulis (Small) R. C. Foster |
| Identification made in | [no date] (5), 1936 (1) |