Veronica dillenii

Crantz

Stirp. Austr. Fasc. ed. 2, 2: 352. 1769.

Common names: Dillenius speedwell
Introduced
Treatment appears in FNA Volume 17. Treatment on page 318. Mentioned on page 307.

Annuals. Stems erect to ascending, (8–) 10–20 (–40) cm, glandular and eglandular-hairy. Leaves: blade lanceolate to ovate, 7–19 (–21) × (3–) 5–12 mm, 1–2 times as long as wide, base cuneate, margins (proximal) crenate-dentate or (distal) ±palmatifid, lobes 3–7+, apex of central lobe obtuse, lateral ± acute, surfaces glandular and eglandular-hairy. Racemes 1, terminal, 60–180 mm, 15–50 (–120) -flowered, axis eglandular and glandular-hairy; proximal bracts similar to leaves, distal ones linear-lanceolate, 3–5 mm. Pedicels erect, 2–4 (–5) mm, shorter than subtending bract, length 1/2–1 times calyx, eglandular and glandular-hairy. Flowers: calyx lobes 3.5–6 mm, apex acute, eglandular and glandular-hairy; corolla deep blue, 4–6 mm diam.; stamens 0.8–1.5 mm; style 0.8–1.5 mm, stigma violet. Capsules compressed in cross-section, narrowly obcordiform, 3.5–4.5 × 4–6 mm, apex emarginate, angle of sinus ca. 90°, ciliate with glandular and eglandular hairs. Seeds 10–28, yellowish, ellipsoid, flat, 0.9–1.6 × 0.7–1.3 mm, 0.2–0.3 mm thick, smooth. 2n = 16 (Eurasia).


Phenology: Flowering (Mar–)Apr–Jul.
Habitat: Open pine and oak forests, rocky, dry, sandy slopes.
Elevation: 500–2200 m.

Distribution

Introduced; Ill., Ind., Mich., N.Y., Va., Wis., Eurasia

Discussion

Veronica dillenii is closely related to V. verna but with larger flowers; it may have been overlooked and may be distributed more widely. Most herbarium specimens of V. dillenii blacken when dry due to the presence of aucubin, which distinguishes them from V. verna.

Selected References

None.

Lower Taxa

None.
... more about "Veronica dillenii"
glandular-hairy +
Acute (?) +  and Obtuse (?) +
Dirk C. Albach +
Crantz +
glandular-hairy +
alternate +, opposite +, whorled +, helical +  and subopposite +
cuneate +
1.9 cm19 mm <br />0.019 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
lanceolate;ovate +
? (?) +  and ? (?) +
5mm;12mm +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rotate +  and campanulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
obcordiform +  and compressed +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
darker +, reddish +  and lighter +
Dillenius speedwell +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
linear-lanceolate +
Ill. +, Ind. +, Mich. +, N.Y. +, Va. +, Wis. +  and Eurasia +
drupe-like +
500–2200 m. +
curved +  and straight +
1 +  and 4 +
Open pine and oak forests, rocky, dry, sandy slopes. +
axillary +  and terminal +
alternate +  and opposite +
persistent +  and deciduous +
? (?) +  and ? (?) +
linear;suborbiculate or triangular-cordate +
serrate +, dentate +  and entire +
palmatifid +  and crenate-dentate +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1/2-1 times calyx +
glandular-hairy +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
5 +  and 4 +
Flowering (Mar–)Apr–Jul. +
Stirp. Austr. Fasc. ed. +
15-50(-120)-flowered +
6 cm60 mm <br />0.06 m <br /> (18 cm180 mm <br />0.18 m <br />) +
minute +
ellipsoid +
0.2mm +  and 0.3mm +
Introduced +
eglandular +  and glandular +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
erect;ascending +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
pointed +  and capitate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
eglandular-hairy +
Veronica dillenii +
Veronica +
species +
gibbous +  and not spurred +
annual +, biennial +  and perennial +
subshrub +  and herb +