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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
Plant CharacteristicsDuration: Annual
Leaf Complexity: Simple
Leaf Margin: Entire
Fruit Type: Capsule
Size Notes: Up to about 3 feet tall when flowering.
Bloom InformationBloom Color: Blue , Violet
Bloom Time: Feb , Mar , Apr , May , Jun , Jul
DistributionUSA: 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 ConditionsLight 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.
BenefitUse Ornamental: Delicate addition to the woodland garden.
Conspicuous Flowers: yes
Nectar Source: yes
From the National Organizations DirectoryAccording 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
Wildflower Center Seed BankLBJWC-202 Collected 2004-04-27 in Travis County by Lady Bird Johnson Wildflower Center
BibliographyBibref 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 ReferenceWebref 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 resourcesUSDA: Find Nuttallanthus texanus in USDA Plants
FNA: Find Nuttallanthus texanus in the Flora of North America (if available)
Google: Search Google for Nuttallanthus texanus
MetadataRecord Modified: 2023-02-20
Research By: AMS, RSB