Nuttallanthus texanus (Scheele) D.A.

Family: Plantaginaceae

Pertinent Synonyms & Notes (particularly those used in California; go to GRIN for other synonyms)

Linaria canadensis var. texana (Scheele) Pennell

Pertinent Common Names (particularly those used in California; go to GRIN for other common names)

Texas toadflax, blue toadflax

Primary Disseminule Type


Description (diagnostics are in brown)

Fruit a globose capsule ca. 3 mm diameter.

Seed trapezoidal in outline, widest at the truncate apex (which is dimpled) and gradually tapered to a smaller more rounded base, somewhat compressed, cross-section rectangular to 6-sided (at least 1 face typically with a longitudinal groove), 0.45–0.55 mm long x 0.25–0.35 mm wide x 0.15–0.25 mm thick. Surface sparkly, dark metallic-gray, tubercled.

Hilum a nondescript indentation or nub at base.

Risk Assessment (codes in yellow or red indicate cause for concern; assessments are current as of mid-2011; click AUQP, NZBORIC, or NZBPI for access to the most recent versions of these databases and possible assessment changes)