Coefficient of Conservatism:
Coefficient of Wetness:
B. S. Walters
A favorite cultivated Iris from Eurasia, established in moist, sunny roadsides, meadows, and shores. First collected by D. Henson in 1996 in Schoolcraft Co.
Older fruiting material of Iris versicolor and I. virginica may appear to have a small hollow in the stem, but unlike these two species, I. sibirica has smooth outer spathe bracts. Flowers are typically blue, but white forms are also common, and other color combinations are present in some cultivars.