Iris may be rhizomatous or bulbous perennials, with narrow leaves and erect stems bearing flowers with 3 large spreading or pendent fall petals, alternating with 3 erect, often smaller, standard petals, in late winter, spring or early summer
Name Status
Unresolved
Horticultural Group
Cal-Sib irises are derived from hybrids between Pacific Coast types and Siberian irises, and are rhizomatous perennials with narrow, usually evergreen leaves and one or two beardless flowers per stem