The leaves are dense and evergreen, up to 20 cm. The flower is typically deep golden yellow with darker veins, although colors may vary. The flower stems are about 12 cm and usually bear 1–2 flowers in spring.
It is on the California Native Plant Society Inventory of Rare and Endangered Plants of California List 4, Limited distribution (Watch List).
Iris innominata, used in gardens, does best in locations with cool, wet winters and warm, dry summers, in neutral or slightly acidic soil, with good drainage, and sun or partial shade. It is often used for hybridizing with other Iris species. Many plants sold under this name in nurseries are hybrids.
- Media related to Iris innominata at Wikimedia Commons
- Data related to Iris innominata at Wikispecies
- Treatment from the Jepson Manual
- California Native Plant Society Inventory of Rare and Endangered Plants
- "Iris innominata". Integrated Taxonomic Information System. Retrieved 21 August 2005.
- Harlow, Nora, Jakob, Kristin, and Raiche, Roger (2003) Wild Lilies, Irises, and Grasses. University of California Press. ISBN 0-520-23849-4.