Veronica filiformis
Trans. Linn. Soc. London 1: 195. 1791.
Perennials. Stems creeping, 5–50 cm, eglandular- and glandular-hairy. Leaves: blade suborbiculate, 4–13 × 4–14 mm, base cordate, margins crenate-serrate, teeth (2 or)3–5(or 6) per side, apex rounded, surfaces sparsely eglandular- and/or glandular-hairy. Racemes 1–6, terminal, 50–500 mm, 10–20-flowered, axis sparsely eglandular- and/or glandular-hairy; bracts suborbiculate, 4–13 mm. Pedicels patent or recurved, (15–)20–30 mm, length 2–5 times subtending bract, eglandular- and glandular-hairy. Flowers: calyx lobes 4–7 mm, 1.5–2.5 mm wide, apex rounded, sparsely glandular-hairy to glabrate; corolla blue-violet to pale blue and white, 8–14 mm diam.; stamens 2.1–2.5 mm; style 3–4 mm. Capsules compressed in cross section, subglobular, 3.5–5 × 5.5–6.5 mm, apex emarginate, sinus angle 50–90°, absent or almost smooth, glabrous or glandular-ciliate. Seeds (2–)6–14(–18), ochre, ovoid, flat to ± excavate, 1.3–1.7 × 1–1.3 mm, 0.6–0.8 mm thick, rugose to rugulose. 2n = 14 (Europe).
Phenology: Flowering (Mar–)Apr–Jun(–Aug).
Habitat: Moist lawns and meadows, waste fields, stream banks.
Elevation: 0–1000 m.
Distribution
B.C., Ont., Que., Calif., Conn., Del., D.C., Idaho, Md., Mich., N.Y., Ohio, Oreg., Pa., Vt., Wash., W.Va., Eurasia.
Discussion
Veronica filiformis is self-incompatible. In the flora area, plants seldom produce capsules; it is dispersed by stem cuttings. The species is native to subalpine meadows in the Caucasus and northern Turkey.
Selected References
None.