Vascular Plants of North Carolina
Account for Texas Toadflax - Linaria texana   Scheele
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Section 6 » Family Plantaginaceae
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AuthorScheele
DistributionMore-or-less throughout the Sandhills; also the southern outer Coastal Plain, northern Piedmont, and Alexander County.

Native of the central portion of the U.S. and southern Canada, but the natural boundaries are poorly known. Adventive on the Atlantic Seaboard, at least.
AbundanceUncommon to frequent in the Sandhills; rare elsewhere. In a few places in the Sandhills, plants have numbered in the thousands. Plants may not re-appear in the same field in successive years.
HabitatSandy fields, fallow cropfields, roadsides, railroads. It often co-occurs with the very common native Canada Toadflax (L. canadensis).
PhenologyFlowering and fruiting March-May.
IdentificationThis exotic species is very similar to Canada Toadflax, but the plants are taller, the leaves broader, and the flowers are much paler: pale lavender with a whitish palate (never medium to sky blue as in L. canadensis). When seen in the field the differences are obvious. No intermediates have been seen.
Taxonomic CommentsAlso known as Nuttallanthus texanus and L. canadensis var. texana.

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