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Native 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.

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Nuttallanthus canadensis (Canada toadflax)
Flaigg, Norman G.

Nuttallanthus canadensis (L.) D.A. Sutton

Canada toadflax, Blue Toadflax

Scrophulariaceae (Figwort Family)

USDA Symbol: nuca

USDA Native Status: Native to U.S.

Blue-violet bilaterally symmetrical flowers blooming in a raceme on a slender, erect stem with short, prostrate branches at base.
Flowers: corolla about 1/2 (1.3 cm) long, with a slender spur about 1/4 (6 mm) long projecting backward and curving down

This plant, once in the genus Linaria, has recently been placed in Nuttallanthus. Texas Toadflax (N. texanus), similar but less common in the Southwest, has larger flowers and seeds. Nuttallanthus species are often components of wildflower seed mixes, and

 

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Plant Characteristics

Duration: Annual
Habit: Herb
Flower:
Fruit:

Bloom Information

Bloom Color: Blue
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep

Distribution

USA: AL , AR , CA , CT , DC , DE , FL , GA , IA , IL , IN , KS , LA , MA , MD , ME , MI , MN , MO , MS , NC , ND , NH , NJ , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , VA , VT , WA , WI , WV
Native Distribution: Southern Canada and throughout most of eastern United States west to Dakotas and Texas; in West, Washington south to California.
Native Habitat: Open, sandy areas where moist in spring.
USDA Native Status: L48(N), CAN(N)

Growing Conditions

Light Requirement: Sun
Soil Moisture: Moist
Soil Description: Loam, Sand
* Available Online from Wildflower Center Store

Bibliography

* The Midwestern Native Garden: Native Alternatives to Nonnative Flowers and Plants An Illustrated Guide (2011) Adelman, Charlotte and Schwartz, Bernard L.

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Recommended Species Lists

Find native plant species by state. Each list contains commercially available species suitable for gardens and planned landscapes. Once you have selected a collection, you can browse the collection or search within it using the combination search.

View Recommended Species page

Additional resources

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

Metadata

Record Modified: 2012-10-03
Research By: TWC Staff

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