Veronica arvensis |
Veronica longifolia |
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corn speedwell, speedwell, véronique des champs, wall speedwell |
long-leaf speedwell, véronique à longues feuilles |
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Habit | Annuals. | Perennials. |
Stems | erect to ascending, 1–30(–40) cm, glandular- or eglandular-hairy. |
erect, usually with 10–20 nodes, (50–)70–120(–150) cm, proximal 1/2 glabrous, distal 1/2 eglandular-hairy with some glandular hairs intermixed. |
Leaves | in 3–6 pairs per stem; blade oblong to broadly ovate, (2–)5–14(–35) × (2–)3–10(–18) mm, 2.5 times as long as wide, base truncate, margins crenate-serrate, apex obtuse to rounded, surfaces sparsely eglandular-hairy, rarely also glandular-hairy. |
blade narrowly ovate-lanceolate, almost linear, or narrowly ovate, (60–)80–120(–150) × 10–30(–35) mm, base cuneate, truncate, or cordate, margins serrate to biserrate, apex acute, surfaces sparsely or densely eglandular-hairy, rarely glabrous. |
Racemes | 1(–3), terminal, 20–150 mm, (5–)15–40(–60)-flowered, axis densely eglandular- and glandular-hairy; bracts linear-oblong, (3.5–)4–6(–10) mm. |
1–7(–9), terminal and occasionally axillary, 100–200(–300) mm, 150–300-flowered, axis eglandular- and glandular-hairy; bracts linear to subulate, 2–6 mm. |
Pedicels | erect, 0–4 mm, shorter than subtending bract, densely eglandular- and glandular-hairy. |
erect, (1–)1.5–3(–5) mm, shorter than subtending bract, densely eglandular-hairy, sometimes also glandular-hairy. |
Flowers | calyx lobes (2–)3.5–5(–6) mm, 0.8–2 mm wide, apex acute, glandular-hairy; corolla sky blue to intense blue, 2–4 mm diam.; stamens 0.3–0.5 mm; style (0.2–)0.4–0.6(–1) mm. |
calyx lobes 2–2.5(–4) mm, apex acute, eglandular-hairy, sometimes glandular-hairy; corolla blue, campanulate, longer than wide, 5–7 mm diam.; stamens 5–6 mm; style (5–)6–8(–10) mm. |
Capsules | compressed in cross section, obcordiform, 2–4 × 2.5–5 mm, apex markedly emarginate, glandular-ciliate, otherwise glabrous. |
± compressed in cross section, ovoid, 2.5–3 × 2.5–3 mm, apex emarginate, glabrous. |
Seeds | 10–30, yellowish, ovoid, flat, 0.7–1.7 × 0.4–1 mm, 0.2–0.4 mm thick, rugose. |
2–40, light brown, ellipsoid, flat, 0.7–1.2 × 0.5–0.8 mm, 0.2–0.3 mm thick, smooth. |
2n | = 16. |
= 34, 68 (Eurasia). |
Veronica arvensis |
Veronica longifolia |
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Phenology | Flowering (Feb–)Mar–Jun(–Oct). | Flowering Jun–Aug(–Sep). |
Habitat | Disturbed sites, lawns, fields, open forests, scrub, grasslands, rocky sites, coasts. | Moist (swampy) habitats, roadsides. |
Elevation | 0–2900 m. (0–9500 ft.) | 0–800 m. (0–2600 ft.) |
Distribution |
AK; AL; AR; AZ; CA; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; BC; NB; NF; NS; ON; PE; QC; YT; Atlantic Islands; Pacific Islands; Greenland; Africa; Eurasia; Australia [Introduced in North America; introduced also in Mexico, Central America]
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AK; CT; FL; IA; IL; IN; KY; MA; MD; ME; MI; MN; MO; MT; ND; NH; NJ; NY; OH; PA; RI; VT; WA; WI; WV; AB; BC; MB; NB; NF; NS; NT; ON; PE; QC; SK; YT; Eurasia [Introduced in North America; introduced also in South America, Pacific Islands (New Zealand)]
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Discussion | Reports of Veronica bachofenii Heuffel, V. grandis Fischer ex Sprengel (= V. daurica Steven), or V. spuria Linnaeus, seem always to refer to garden varieties of V. longifolia. Garden varieties often differ from typical plants in having glandular hairs and broader leaves, which may indicate past hybridization with other species. Subgenus Pseudolysimachium includes Veronica longifolia and V. spicata, which are naturalized in the flora area, but also other species and hybrids of these, which are commonly grown ornamentally and may escape from cultivation. All of these plants should easily key out with V. longifolia and V. spicata but differ in specifics of the species descriptions. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 17, p. 317. | FNA vol. 17, p. 308. |
Parent taxa | Plantaginaceae > Veronica | Plantaginaceae > Veronica |
Sibling taxa | ||
Synonyms | V. maritima | |
Name authority | Linnaeus: Sp. Pl. 1: 13. (1753) | Linnaeus: Sp. Pl. 1: 10. (1753) |
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