| Name | Iris hexagona var. giganticaerulea (Small) R. C. Foster |
| Authorship | (Small) R. C. Foster |
| Rank | Variety |
| Placed in | Iris hexagona Walter |
| Citation | 1937 Contr. Gray Herb. 119: 50 |
| Holdings | 18 Specimens held in the Harvard University Herbaria identified as Iris hexagona var. giganticaerulea (Small) R. C. Foster |
| Identification made in | [no date] (18) |