Moth Mullein. Verbascum Blattaria L. Flowers yellow; pod 6 mm. diameter; seeds light to dark brown, .5–1 mm. long, columnar, lateral surface slightly angular and 6-sided, base truncate or obliquely so and broader than the rounded apex, thus somewhat thimble-shaped, each lateral face deeply pitted in longitudinal rows, the pits in contiguous rows, alternating. Introduced from Europe. A vile weed in meadows and pastures.

Velvet-Leaved Mullein. Verbascum Thapsus L. Flowers yellow; pod 6 mm. high; seeds cannot be distinguished with certainty by means of the ordinary lens from those of moth mullein. The pitted surface seems to predominate in Verbascum Blattaria, while the grooved surface seems to be more common in the seeds of V. Thapsus. Introduced from Europe. Common in thin pastures.

Fig 167. [Wall Speedwell. Veronica arvensis] L.

Wall Speedwell. Veronica arvensis L. Pods heart-shaped; seeds dull, light yellow, flattened, oval, .7–1.1 mm. long on one side appearing as though the two ends had been brought together by bending. From Europe.

Fig 168. [Common Speedwell. Veronica officinalis] L.

Common Speedwell. Veronica officinalis L. Pods heart-shaped; seeds dull, pale yellow, flattened, broadly oval to broadly obovate, .8–1.2 mm. long, with a small scar near the middle of one side, from which extends a faint line (raphe) to one extremity. Appearing as though introduced.