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Nuttallanthus texanus (Texas toadflax)
Anderson, Wynn

Nuttallanthus texanus

Nuttallanthus texanus (Scheele) D.A. Sutton

Texas Toadflax, Texas Toad-flax, Toadflax

Scrophulariaceae (Figwort Family)

Synonym(s): Linaria canadensis var. texana, Linaria texana

USDA Symbol: nute

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

Texas Toad-flax sports two-lipped violet to pale blue flowers atop 32 inch tall, slender stalks. A slender recurved spur extends to the rear of the calyx. Small, basal leaf rosette.


From the Image Gallery

20 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Complexity: Simple
Leaf Margin: Entire
Fruit Type: Capsule
Size Notes: Up to about 3 feet tall when flowering.
Leaf: Green

Bloom Information

Bloom Color: Blue , Violet
Bloom Time: Feb , Mar , Apr , May , Jun , Jul


USA: AL , AR , AZ , CA , CO , FL , GA , HI , IL , KS , KY , LA , MN , MO , MS , MT , NC , ND , NE , NM , OK , OR , SC , SD , TN , TX , VA , WA , WY
Native Distribution: From British Columbia to Mexico, east to the Atlantic coast.

Growing Conditions

Light Requirement: Sun
Soil Moisture: Moist
Soil Description: Sandy soils in fields, open woods, and grassy pinelands.
Conditions Comments: Fairly common in the prairies, open woods & grassy pinelands, Texas toad-flax provides a delicate & subtle color addition to the woodland garden.


Use Ornamental: Delicate addition to the woodland garden.
Conspicuous Flowers: yes
Attracts: Butterflies
Nectar Source: yes

From the National Organizations Directory

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

Fredericksburg Nature Center - Fredericksburg, TX
Stengl Biological Research Station - Smithville, TX

Herbarium Specimen(s)

NPSOT 1090 Collected Mar 9, 1995 in Bexar County by Harry Cliffe

1 specimen(s) available in the Digital Herbarium

Wildflower Center Seed Bank

LBJWC-202 Collected 2004-04-27 in Travis County by Lady Bird Johnson Wildflower Center

1 collection(s) available in the Wildflower Center Seed Bank


Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
Bibref 328 - Wildflowers of Texas (2003) Ajilvsgi, Geyata.
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.

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


Record Modified: 2023-02-20
Research By: AMS, RSB

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