A
perennial herb,
I. domestica may grow to a height of , with its
rhizomes in shallow ground, extending horizontally. It has 3-5-stems and 8–14 leaves per stem growing in a
fan, with flowers ascending proximally having orange-red scattered spots of darker pigment, blooming during summer. The seed pods open in the fall, showing clusters of black, shiny seeds whose resemblance to those of a
blackberry gives the plant its common name, "blackberry lily". The plant is hardy to
USDA plant hardiness zone 5 and is propagated by seeds or division. In the wild, it grows in
grasslands, pastures, forest clearings,
meadows, and mountainous regions or shrublands. Although it has escaped cultivation in many regions, it is not considered to have potential as an
invasive species. ==Synonyms==