Verbascum lychnitis subsp. lychnitis

WeedyIntroduced
Treatment appears in FNA Volume 17. Treatment on page 349.

Biennials. Stems 50–150 cm, thinly tawny to gray-tomentose, glabrescent, eglandular. Leaves: surfaces thinly tawny to gray-tomentose, abaxial soon glabrescent, adaxial persistent, closely adherent, eglandular; basal leaves sessile or basally attenuate and sessile, less commonly with petiolar region 10–50 mm, cauline sessile; blade obovate to elliptic-obovate, (8–) 10–15 (–30) × 3–7 (–11) cm, base attenuate; cauline not clasping or slightly so, gradually smaller distally, base not decurrent, margins coarsely to shallowly crenate-serrate or subentire, apex of distal cauline and floral bracts long-acuminate. Inflorescences freely branched, loosely conic to broadly cylindric, elliptic, or ovate panicle, flowers loosely overlapping, sometimes barely remote, in clusters of 2–5; rachis thinly tawny to gray-tomentose, glabrescent, persistent and closely adherent on abaxial leaf surfaces, not completely obscuring epidermis, eglandular; bracts linear to narrowly lanceolate, 8–15 mm, base not decurrent, apex acute, thinly tawny to gray-tomentose, glabrescent, persistent and closely adherent on abaxial leaf surfaces, not completely obscuring epidermis, eglandular. Pedicels free, 6–11 mm; bracteoles 2. Flowers: calyx 2.5–4 mm, thinly tawny to gray-tomentose, glabrescent, persistent and closely adherent on abaxial leaf surfaces, not completely obscuring epidermis, eglandular, lobes lanceolate; corolla white, sometimes yellowish, 12–20 mm diam., pellucid glands absent; filaments villous, hairs yellow to whitish; stigma capitate. Capsules ovoid-ellipsoid, 4–5 mm, tomentose. 2n = 32, 34.


Phenology: Flowering Jun–Aug.
Habitat: Sandy fields, vacant lots, roadsides, disturbed sites.
Elevation: 50–300 m.

Distribution

Introduced; Ont., Colo., Conn., Del., Iowa, Md., Mass., Mich., Mo., N.H., N.J., N.Y., Pa., R.I., Vt., Va., W.Va., Europe, Asia

Discussion

J. K. Small (1933) listed Verbascum lychnitis (without further taxonomic restriction) as occurring in North Carolina, but no specimen has yet been located.

Verbascum ×spurium W. D. J. Koch is a hybrid between V. lychnitis and V. thapsus.

Selected References

None.

Lower Taxa

None.
persistent +
adherent +
glabrescent +  and gray-tomentose +
acute +  and long-acuminate +
Guy L. Nesom +
Linnaeus +
not decurrent +  and attenuate +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
7 cm70 mm <br />0.07 m <br /> (11 cm110 mm <br />0.11 m <br />) +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
obovate;elliptic-obovate +
not +, leathery +  and not fleshy +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
linear +  and narrowly lanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
persistent +
adherent +
glabrescent +  and gray-tomentose +
campanulate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
ovoid-ellipsoid +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
bilabiate +, regular +  and symmetric +
yellowish +  and white +
1.2 cm12 mm <br />0.012 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
cupulate +  and rotate +
Ont. +, Colo. +, Conn. +, Del. +, Iowa +, Md. +, Mass. +, Mich. +, Mo. +, N.H. +, N.J. +, N.Y. +, Pa. +, R.I. +, Vt. +, Va. +, W.Va. +, Europe +  and Asia +
50–300 m. +
curved +  and straight +
not +  and abundant +
ovoid +  and ellipsoid-ovoid broadly ellipsoid ovoid-globular or subglobular +
Sandy fields, vacant lots, roadsides, disturbed sites. +
yellow +  and whitish +
axillary +, subterminal +  and terminal +
loosely conic +  and broadly cylindric elliptic or ovate +
persistent +, semipersistent +  and deciduous +
cauline +  and basal +
lanceolate +
subentire +  and crenate-serrate +
tenuinucellate +, unitegmic +  and hemitropous +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
spreading;deflexed +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering Jun–Aug. +
persistent +
glabrescent +  and gray-tomentose +
brown +  and orangish +
rugose +  and pitted +
conic +  and cylindric +
connate +  and distinct +
Weedy +  and Introduced +
subequal +
glabrescent +  and gray-tomentose +
50 cm500 mm <br />0.5 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
spatulate +  and capitate +
gray-tomentose +
Verbascum lychnitis subsp. lychnitis +
Verbascum lychnitis +
subspecies +
red-tinged +
perennial +, biennial +  and annual +