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trilobed speedwell

long-leaf speedwell, véronique à longues feuilles

Habit Annuals. Perennials.
Stems

decumbent, (5–)10–30 cm, ± 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

blade broadly ovate to suborbiculate, 3(–5)-lobed, central lobe 1/4–1/2 times length of whole leaf, (3–)5–10(–15) × (4–)6–12(–18) mm, ± fleshy, base truncate to subcordate, margins 3(–5)-lobed, apex acute, surfaces sparsely eglandular-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

1–10, terminal, (50–)100–300 mm, 5–20-flowered, axis sparsely eglandular-hairy;

bracts broadly ovate to suborbiculate, 3(–5)-lobed, (3–)5–10(–15) 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

patent, deflexed in fruit, (2–)4–8(–10) mm, shorter than subtending bract, length 1–2 times calyx, glabrous abaxially, hairy adaxially.

erect, (1–)1.5–3(–5) mm, shorter than subtending bract, densely eglandular-hairy, sometimes also glandular-hairy.

Flowers

calyx lobes 4–5(–6) mm, apex acute, puberulent on abaxial surface, rarely glabrous, densely ciliate with 35–60 per side;

corolla deep blue with white center, 3–5 mm diam.;

stamens dark blue, length unknown;

style 0.5–0.9(–1.1) 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

± round in cross section, ovoid, 2.5–3(–3.5) × 4–5 mm, apex ± emarginate, glabrous.

± compressed in cross section, ovoid, 2.5–3 × 2.5–3 mm, apex emarginate, glabrous.

Seeds

(1–)4, dull yellowish brown, ellipsoid, often elongate-cuboidal, deeply urn-shaped (elaiosome inside), 2.2–2.8 × 1.5–2.2 mm, 1–1.4 mm thick, cristate to strongly rugose at margins.

2–40, light brown, ellipsoid, flat, 0.7–1.2 × 0.5–0.8 mm, 0.2–0.3 mm thick, smooth.

2n

= 18 (Eurasia).

= 34, 68 (Eurasia).

Veronica triloba

Veronica longifolia

Phenology Flowering (Feb–)Mar–May(–Jun). Flowering Jun–Aug(–Sep).
Habitat Disturbed sites. Moist (swampy) habitats, roadsides.
Elevation 100–200 m. (300–700 ft.) 0–800 m. (0–2600 ft.)
Distribution
from FNA
CA; OH; Europe (Balkans); Asia (Turkey) [Introduced in North America]
from FNA
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)]
[WildflowerSearch map]
[BONAP county map]
Discussion

Veronica triloba is known in the flora area from three recent collections in California and Ohio; it is possibly more widespread than reported here. It is closely related to V. hederifolia.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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.)

Source FNA vol. 17, p. 316. FNA vol. 17, p. 308.
Parent taxa Plantaginaceae > Veronica Plantaginaceae > Veronica
Sibling taxa
V. agrestis, V. alpina, V. americana, V. anagallis-aquatica, V. argute-serrata, V. arvensis, V. beccabunga, V. biloba, V. catenata, V. chamaedrys, V. copelandii, V. cusickii, V. cymbalaria, V. dillenii, V. filiformis, V. fruticans, V. grandiflora, V. hederifolia, V. longifolia, V. officinalis, V. peregrina, V. persica, V. polita, V. scutellata, V. serpyllifolia, V. spicata, V. stelleri, V. sublobata, V. teucrium, V. triphyllos, V. undulata, V. verna, V. wormskjoldii
V. agrestis, V. alpina, V. americana, V. anagallis-aquatica, V. argute-serrata, V. arvensis, V. beccabunga, V. biloba, V. catenata, V. chamaedrys, V. copelandii, V. cusickii, V. cymbalaria, V. dillenii, V. filiformis, V. fruticans, V. grandiflora, V. hederifolia, V. officinalis, V. peregrina, V. persica, V. polita, V. scutellata, V. serpyllifolia, V. spicata, V. stelleri, V. sublobata, V. teucrium, V. triloba, V. triphyllos, V. undulata, V. verna, V. wormskjoldii
Synonyms V. hederifolia var. triloba V. maritima
Name authority (Opiz) Opiz: Naturalientausch 11: 467. (1826) Linnaeus: Sp. Pl. 1: 10. (1753)
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