Host an Event Volunteer Join Tickets

Support the plant database you love!


Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or you can choose a plant family:
Iris macrosiphon (Bowltube iris)
Bransford, W.D. and Dolphia

Iris macrosiphon

Iris macrosiphon Torr.

Bowltube Iris, Ground Iris

Iridaceae (Iris Family)

Synonym(s): Iris amabilis, Iris californica


USDA Native Status: L48 (N)

Large, deep golden yellow, cream, pale lavender, or deep blue-purple flowers, usually with distinct veins, on short stalks among sword-shaped leaves.

The range in coloration may be partly due to hybridization with other native species, which is common among western irises.


From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Capsule
Size Notes: Up to about 10 inches tall.

Bloom Information

Bloom Color: White , Yellow , Blue , Purple
Bloom Time: Mar , Apr , May , Jun


Native Distribution: California in northern Coast Ranges and foothills of Sierra Nevada.
Native Habitat: Grassy or open, wooded slopes.


Use Other: Fiber in young leaves used for cordage by indigenous peoples.
Conspicuous Flowers: yes

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

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

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


Record Modified: 2023-04-06
Research By: TWC Staff

Go back