Veronica agrestis |
Veronica serpyllifolia |
|
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field speedwell, green field speedwell, green procumbent speedwell, véronique agreste |
thyme-leaf speedwell |
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Habit | Annuals. | Perennials. |
Stems | creeping to decumbent, 5–25 cm, hairy. |
creeping to ascending, 5–40 cm, scattered eglandular hairs only, often also with glandular hairs, sometimes glabrate. |
Leaves | blade elliptic-ovate to oblong, (6–)8–16(–19) × (3–)4–10(–13) mm, base truncate, margins serrate, teeth 4–6(–8) per side, apex obtuse to acute, abaxial surface ± more densely hairy than adaxial. |
blade oblong-lanceolate to ovate, 8–25 × 5–13 mm, 1.5–2.5 times as long as wide, base cuneate, margins subentire or serrulate-crenate, apex rounded to short-acuminate, surfaces glabrate. |
Racemes | 1–5, terminal, 50–250 mm, 5–15-flowered, axis eglandular-hairy, sometimes glandular-hairy; bracts elliptic-ovate to oblong, (6–)9–16(–19) mm. |
1, terminal, 50–100 mm, 10–30(–60)-flowered, axis eglandular- and glandular-hairy; bracts oblong, 4–7 mm. |
Pedicels | deflexed, (5–)6–10(–15) mm, ± shorter than subtending bracts, densely eglandular- and, sometimes, glandular-hairy distally. |
erect, 2–5 mm, 4–6 mm in fruit, shorter than subtending bract in flower, eglandular- and, sometimes, glandular-hairy. |
Flowers | calyx lobes linear-lanceolate, (5–)6–7 mm, 2.2–2.6 mm wide, apex rounded, sparsely eglandular- or glandular-hairy; corolla white or pale pinkish or pale blue, 4–5(–6) mm diam.; stamens 0.5–1 mm; style (0.6–)0.9–1.1(–1.2) mm. |
calyx lobes 2–3 mm, apex acute, ciliate; corolla white, blue, or pink, with purple or dark blue veins (except on abaxial lobe), rotate, 5–8 mm diam.; stamens 2.5–3 mm; style 2–4 mm. |
Capsules | ± compressed in cross section, ± subglobular, 3.5–4.5(–4.7) × 4.5–6(–6.3) mm, apex emarginate, sparsely glandular-hairy. |
compressed in cross section, obcordiform, 2.5–3.5 × 4–5.5 mm, wider than long, apex acutely emarginate, glandular-ciliate, otherwise glabrate. |
Seeds | 6–14, yellow to ochre, globular, cymbiform, 1.3–2.1 × 1–1.6 mm, 0.6–1.1 mm thick, strongly rugose (transversely ribbed). |
50–72, brown, ellipsoid, flat, 0.6–1.1 × 0.4–1 mm, 0.2 mm thick, smooth. |
2n | = 28 (Europe). |
= 14. |
Veronica agrestis |
Veronica serpyllifolia |
|
Phenology | Flowering May–Oct. | Flowering Apr–Aug. |
Habitat | Light, noncalcareous, moist soils, gravelly soils. | River banks, wet places, moist meadows, shady forests. |
Elevation | (0–)300–800 m. ((0–)1000–2600 ft.) | 0–3300 m. (0–10800 ft.) |
Distribution |
DC; FL; IL; LA; MA; NY; PA; TX; VT; NF; NS; QC; Europe [Introduced in North America]
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AK; AL; AR; AZ; CA; CO; CT; DC; DE; GA; IA; ID; IL; IN; KS; KY; MA; MD; ME; MI; MN; MO; MT; NC; ND; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; TN; UT; VA; VT; WA; WI; WV; WY; AB; BC; NB; NL; NS; ON; PE; QC; SK; South America; Mexico (Baja California); Eurasia; Australia
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Discussion | Veronica agrestis is similar to the more frequent V. persica and probably frequently overlooked and to be expected elsewhere. However, it should be noted that it is less common than V. persica or V. polita and always in more humid habitats. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Alpine plants of Veronica serpyllifolia with bright blue, larger corollas, and smaller, hairier raceme axes have been treated at various ranks under the epithet humifusa. The characters are labile and show intergradations with the typical plants. Veronica serpyllifolia is widespread; it is not clear where it is native. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 320. | FNA vol. 17, p. 312. |
Parent taxa | Plantaginaceae > Veronica | Plantaginaceae > Veronica |
Sibling taxa | ||
Synonyms | V. humifusa, V. serpyllifolia var. decipiens, V. serpyllifolia subsp. humifusa, V. serpyllifolia var. humifusa, V. tenella | |
Name authority | Linnaeus: Sp. Pl. 1: 13. (1753) | Linnaeus: Sp. Pl. 1: 12. (1753) |
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