Veronica arvensis

Erect annual to 10 cm high; stems pilose. Leaves ovate to triangular, 3–18 mm long, 2–14 mm wide, often withered at anthesis, apex obtuse, base truncate to cordate, margins bluntly toothed or crenate; petiole 0.5–9 mm long. Flowers solitary in axils of (often entire) leaf-like bracts; pedicels to 2 mm long in fruit. Calyx-lobes 3–5 mm long, 1–2 mm wide in fruit; corolla 1–2 mm long, pale blue or lilac. Capsule broad-elliptic, broader than long, 1.3–3.5 mm long, 1.8–4 mm wide, deeply emarginate, with long fine hairs on margin; style 0.3–0.8 mm long. Flowers spring and summer.