Veronica biloba |
Veronica spicata |
|
---|---|---|
bilobed speedwell, twolobe speedwell |
spike speedwell, véronique en épi |
|
Habit | Annuals. | Perennials. |
Stems | erect, (1–)2–10(–18) cm, eglandular-hairy. |
ascending, usually with 4–10 nodes, 5–45(–60) cm, proximally eglandular- or glandular-hairy, sometimes glabrous, distally eglandular- and, usually, glandular-hairy. |
Leaves | blade ovate to lanceolate-ovate, (3–)4–12(–20) × (1–)2–6(–12) mm, base cuneate, margins remotely serrate, rarely dentate, apex acute, surfaces glabrate. |
blade ovate-oblong to narrowly oblong-lanceolate, (30–)40–70(–80) × 5–20 mm, base long-cuneate, margins shallowly crenate to shallowly serrate to subentire, apex obtuse to rounded, surfaces densely glandular- or eglandular-hairy, rarely glabrate. |
Racemes | 1–8, terminal, 20–80 mm, 5–15(–30)-flowered, axis eglandular- and glandular-hairy; bracts lanceolate, 6–9 mm, margins entire, apex acute. |
1(–7), terminal, sometimes with lateral ones, (50–)70–130(–170) mm, (50–)100–300-flowered, axis eglandular- and glandular-hairy; bracts oblong to lanceolate, 3–5 mm. |
Pedicels | straight or scarcely deflexed, erect-spreading to horizontally spreading in fruit, (2–)3–8(–11) mm, shorter than subtending bract, eglandular-hairy, sometimes glandular-hairy, rarely glabrous. |
suberect to patent, 0.5–1(–2) mm, shorter than subtending bract, eglandular- and glandular-hairy. |
Flowers | calyx lobes (3–)4–7(–9) mm, margins entire, apex acuminate-acute, pairs connate 0.5–1.5 mm, puberulent or glabrate; corolla pale to clear blue, 2–4 mm diam.; stamens 1–2 mm; style 0.4–0.8(–2) mm. |
calyx lobes 2–3 mm, ciliate, apex obtuse, glandular-hairy, rarely eglandular-hairy; corolla blue, campanulate, longer than wide, 5–6 mm diam., lobes 3–4.5 × 1.5–2 mm; stamens 5 mm; style 8 mm. |
Capsules | slightly compressed in cross section, obcordiform, (2.4–)2.8–4(–4.5) × (3–)3.5–5(–6) mm, apex emarginate, eglandular- and/or glandular-hairy, rarely glabrous. |
± compressed in cross section, broadly ovoid, 2–3 × 2–3 mm, apex obtuse, densely glandular-puberulent. |
Seeds | (2–)4–6(–10), bright yellow, oblong, cymbiform, (1.4–)1.7–2(–2.2) × (0.7–)1–1.3 mm, 0.7 mm thick, smooth. |
3–40, light brown, ellipsoid, flat, 0.6–1.2 × 0.5–0.8 mm, 0.2–0.4 mm thick, smooth. |
2n | = 28 (Asia). |
= 34, 68 (Europe). |
Veronica biloba |
Veronica spicata |
|
Phenology | Flowering Apr–Jul. | Flowering Jun–Sep. |
Habitat | Bare soils, open forests, scree, mountain and alpine meadows, humid places near streams, waste fields, ruins, calcareous and non-calcareous soils. | Dry grasslands. |
Elevation | (400–)1300–3000 m. ((1300–)4300–9800 ft.) | 0–700 m. (0–2300 ft.) |
Distribution |
MT; UT; BC; Asia [Introduced in North America]
|
CT; NH; NY; ON; QC; Eurasia [Introduced in North America] |
Discussion | Most reports of Veronica biloba pertain to V. argute-serrata. There are gatherings from potentially mixed populations (for example, Mt. Baldy, British Columbia, Lomer 97-118, UBC). Studies on phenotypic plasticity in these two species are necessary to ascertain the diagnostic characters. Veronica intercedens Bornmüller, native to western Asia, was recently reported from Idaho. It is most similar to V. biloba, distinguished by a large calyx with broadly ovate lobes (3–5 mm versus 2–3.5 mm), the pairs joined by more than one half. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Veronica spicata is widely distributed in horticulture and a multitude of cultivars is available. Some specimens may also be derived from a related species, V. barrelieri Schott ex Roemer & Schultes, differentiated from V. spicata by glabrous calyx lobes, and in its typical variety, by eglandular pubescence. Another closely related species, V. incana Linnaeus, has a dense white woolly indumentum and is native to northern Asia and eastern Europe; it has not escaped from cultivation in the flora area. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 321. | FNA vol. 17, p. 308. |
Parent taxa | Plantaginaceae > Veronica | Plantaginaceae > Veronica |
Sibling taxa | ||
Name authority | Linnaeus: Mant. Pl. 2: 172. (1771) | Linnaeus: Sp. Pl. 1: 10. (1753) |
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