|Veronica arvensis, an
alien species from Eurasia or Africa, is a biennial herb having
spread across the country, stems being erect 10-30cm in height.
Leaves are opposite, 0.6-2cm in length, 0.4-1.8cm in width, in the
shape of a broad oval, with relatively significant serrations on
margins; blades on upperparts becoming smaller as to go upward and
grow into bracts. Single small purple flowers emerge from lea axils
on upper portions. Bloom time: April-June.