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NPIN: Native Plant Database

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Iris hartwegii (Rainbow iris)
Bransford, W.D. and Dolphia

Iris hartwegii

Iris hartwegii Baker

Rainbow iris, Sierra iris

Iridaceae (Iris Family)

Synonym(s):

USDA Symbol: IRHA

USDA Native Status: L48 (N)

This variable species usually has narrow, pale-green leaves and light-yellow flowers with golden or purple veins. The flower stem in slender, from 6 in.-1 ft. tall, and bears 1-2 flowers.

A member of the iris family (family Iridaceae) which consists of herbs growing from rhizomes, bulbs, or corms, with narrow basal leaves and showy clusters at the tips of long stalks. There are about 60 genera and 1,500 species, distributed in temperate and tropical regions. Among them, Iris, Freesia, Gladiolus, Bugle Lily, and Montbretia are popular ornamentals. Saffron dye is obtained from Crocus, and essence of violets, used in perfumes, is extracted from the rhizomes of Iris.

 

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit:
Size Class: 0-1 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: May , Jun

Distribution

USA: CA
Native Distribution: W. base of Sierras from Butte to Kern Cos., CA
Native Habitat: Wooded slopes from 2000-6000 ft.

Growing Conditions

Light Requirement: Shade
Soil Moisture: Moist
Soil Description: Moist, humus-rich soil.
Conditions Comments: Hybridizes readily with I. macrosiphon.

Benefit

Conspicuous Flowers: yes

Propagation

Seed Collection: Easily collected from the large capsules.
Seed Treatment: Not Available
Commercially Avail: yes

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACU OBL
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Suppliers Directory

According to the inventory provided by Associate Suppliers, this plant is available at the following locations:

Oregon Native Plant Nursery - Woodburn, OR

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Santa Barbara Botanic Garden - Santa Barbara, CA
Native Seed Network - Corvallis, OR

Additional resources

USDA: Find Iris hartwegii in USDA Plants
FNA: Find Iris hartwegii in the Flora of North America (if available)
Google: Search Google for Iris hartwegii

Metadata

Record Modified: 2007-08-19
Research By: TWC Staff

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