Iris innominata is a woodland iris. The flower is typically deep golden yellow with darker veins. The leaves are dense and evergreen, up to 20 cm. The flower stems are about 12 cm and usually bear 1-2 flowers.
It blooms in spring.
Distribution
I. innominata is abundant in southern Oregon and along California's North Coast, Klamath Ranges (Del Norte County, California).
I. innominata prefers some moisture during the year, with good drainage.
I. innominata are often used for hybridizing. Many plants sold under this name in nurseries are hybrids.
References
Treatment from the Jepson Manual (http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?Iris+innominata)
California Native Plant Society Inventory of Rare and Endangered Plants (http://www.cal.net/~levinel/cgi-bin/cnps/sensinv.cgi/Go?_id=iris_innominata&sort=DEFAULT)
Iris douglasiana is a native of California and Oregon growing on the edge of coastal forests and on bluffs and prairies overlooking the sea.
Iris macrosiphon is found in open woods and has very narrow leaves taller than the flowers and colors of pale purple, pale yellow to white, apricot or blue or blue-purple.
Iris purdyi is found in the coastal forests of the north Coast ranges.
Iris is a genus of flowering plants with showy flowers which takes its name from the Latin word for rainbow, referring to the wide variety of flower colors found among the many species as well as countless garden cultivars.
Iris unguicularis (or stylosa) is a remarkable winter flowering species from Algeria, with sky-blue flowers blotched with yellow, produced (in the Northern Hemisphere) at irregular intervals from November to March, the bleakest period of the year.
Iris pallida is cultivated for extraction of essential oils from its rhizome orris root.