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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.

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Linum rigidum (Stiffstem flax)
Flaigg, Norman G.

Linum rigidum

Linum rigidum Pursh

Stiffstem Flax, Large-flower Yellow Flax, Yellow Flax

Linaceae (Flax Family)



USDA Native Status: L48 (N), CAN (N)

Yellow flax is common on the prairies of the Southwest. It is usually 8-20 inches tall, depending on growing conditions. It has a single blossom, 1-1 1/2 inches across, on each of its few branches. Leaves are alternate, narrow, and 1/3 inch long. The 5 yellow to orange petals have deep red centers from which grow the 5 stamens with yellow anthers. Each plant bears many flowers but usually only a few each day.


From the Image Gallery

21 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Fruit Type: Capsule
Size Notes: Up to about 20 inches tall.

Bloom Information

Bloom Color: Red , Orange , Yellow
Bloom Time: May , Jun , Jul , Aug , Sep


USA: AR , CO , IA , IL , KS , MN , MO , MT , ND , NE , NM , OK , SD , TX , WI , WY
Canada: SK
Native Distribution: W. MN & Man. to Alt., s. to n. Mex.
Native Habitat: Upland prairies

Growing Conditions

Water Use: Low
Light Requirement: Sun
Soil Moisture: Dry
Soil Description: Sandy or gravelly soils.
Conditions Comments: Plant displays 2 or 3 open blooms at a time, eventually producing up to a dozen flowers. Found on sandy and light soils in grassland habitat. Height variable from 6" to just over 12", spread from 4" to 10".


Warning: Animals have been poisoned, sometimes fatally, by eating plants in the Linum genus. Humans should generally avoid ingesting plants that are toxic to animals.
Conspicuous Flowers: yes
Interesting Foliage: yes
Deer Resistant: Minimal

From the National Organizations Directory

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

Lady Bird Johnson Wildflower Center - Austin, TX
Sibley Nature Center - Midland, TX
Stengl Biological Research Station - Smithville, TX

Herbarium Specimen(s)

NPSOT 0391 Collected May 19, 1993 in Comal County by Mary Beth White

1 specimen(s) available in the Digital Herbarium


Bibref 946 - Gardening with Prairie Plants: How to Create Beautiful Native Landscapes (2002) Wasowski, Sally
Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller

Search More Titles in Bibliography

Web Reference

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


Record Modified: 2023-02-16
Research By: TWC Staff

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