1969 American Journal of Botany: Dormancy Factors in Iris (Iridaceae) Seeds https://www.jstor.org/stable/2440847?Search=yes resultItemClick=true searchText=Irid...
2014, Pacific Coast Natives (PCI) Seed Germination Tricks by Kathleen Sayce The World of Irises, Blog of the American Iris Society, December 29, 2014 Key Words: ...
2014 Public Library Of Science: Factors Influencing Germination of a Functionally Important Grassland Plant, Iris tenax https://journals.plos.org/plosone/articl...