Irises are one of the world’s famous perennial flowering plant species. At present, there are ≈300 recognized species of Iris which are mainly distributed in the northern temperate regions. There are ≈60 species, 13 variants, and 5 forms in China (Shi and Gao, 2010). Iris sanguinea grows in swamps, swampy meadows, or sunny slopes, with ornamental and medicinal functions (Shang and Wang, 2014). It breeds easily and has strong resistance to diseases, pests, and cold. Rhizomes can survive in low temperature frozen soil down to −30 °C (Cai et al., 2016). The flower of I. sanguinea comes mainly in blue violet (RHS N88A) (Wang and Wang, 2017). In 2017, a new light violet (RHS 85C) I. sanguinea cultivar Forest Fairy resulted from the hybridization of I. sanguinea × I. sanguinea f. albiflora which was crossed in 2007. Flowers of ‘Forest Fairy’ were large and its outer and inner perianths have conspicuous brown reticulate veins on yellow claw at the base, and spoon-type parts of outer and inner perianths open horizontally and spread outward.
Cai, Y., Dong, R., Zhao, C.L., Liu, X.J. & Zheng, T.J. 2016 Cultivation techniques of Iris sanguinea Donn ex Horn. Engineering seedlings production Northern Hort. 2016 4 81 82
Wang, L., Xia, D.M., Li, Y.N., Peng, H.M., Cheng, H.L. & Fan, L.J. 2016 A new Iris sanguinea cultivar ‘Beautiful Lotus’ Acta Hort. Sin. 43 8 1629 1630