Calflora, a 501c3 non-profit
Distribution by County   10018    
Iris tenax  Douglas ex Lindl.
Toughleaf iris
Iris tenax is a perennial herb (rhizomatous) that is native to California, and also found in Oregon and Washington.
Record Count by County

Del Norte: 1 Humboldt: 5 Siskiyou: 6 Trinity: 2

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).