Taxon  Report   4356 
Iris missouriensis  Nutt.
Rocky mountain iris,  Western blue flag
Iris missouriensis
© 2010 Lee Dittmann
Click on a photo to see it bigger.
Iris missouriensis
© 2011 Robert Sivinski
Iris missouriensis
© 2000 Gary A. Monroe
Iris missouriensis, a monocot, is a perennial herb that is native to California and is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Iris missouriensis
© 2003 Michael Charters
Genus: Iris
Yellow Pine Forest, Red Fir Forest, wetland-riparian
Wetlands: Occurs usually in wetlands, occasionally in non wetlands
Toxicity: MINOR, DERMATITIS   [California Poison Control System 2010]    
Distribution by County 

Add an Observation of  Iris missouriensis

Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Iris longipetala
PLANTS: Iris missouriensis var. arizonica
PLANTS: Iris missouriensis var. pelogonus
PLANTS: Iris pariensis
PLANTS: Iris tolmieana
More information about  Iris missouriensis
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on CalPhotos / Google Images

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

website references from Google

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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Mar 22, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.