The drooping, sub-ellipsoidal falls are long and 2–3.5 cm wide. In the centre, they have a beard, which is either blue or white, but tipped with yellow. The shorter, obliquely upright standards, are The tips of the standards are inclined to each other. It has perianth tube that is 4 cm long, and a 1.5 cm long and 1.8 cm wide ovary. It has blue stamens, a 4.5 cm long and 1.5 cm wide stigma and filaments longer than the anthers. After the iris has flowered, it produces an ovoid, or obovate,(which is triangular in section), seed capsule. It is long, and 3.5 cm wide. In 2012, a study was carried out on 4 diploid and 7 allopolyploid bearded Iris species. Their leaf flavonoid, isoflavonoid and xanthone constituents were investigated. It also found that "Iris bicapitata" had a chromosome number of 2n=40, and was a parent species of "Iris germanica" and "Iris albicans" (who are counted as 2n=44). As most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings. Specimens from Apulia were counted in 1996 by M. Colasante and in 2003, (from Apricena and Sannicandro garganico), both counted as 2n=40. This defines the special as a tetraploid. It is normally published as 2n=40. It has the common names of 'Two-flowered Iris', or 'Twin flowered Iris'. The Latin specific epithet "bicapitata" refers to 'bi' (two) 'capitata' (heads). Due to the plant has two flowers at the top of its stem. On 1 April 1992, specimens were found in the Italian region of Apulia, between the towns of Apricena and Sanniandro Garganico. These have been used as a holotype (single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon)) of "Iris bicapitata". It was first published and described by Maria Colasante in 'Flora Mediterranea' (Fl.