Verbascum blattaria |
Verbascum densiflorum |
|
---|---|---|
molène blattaire, moth mullein |
dense-flower mullein, verbascum densiflorum |
|
Habit | Annuals or biennials. | Biennials. |
Stems | 60–150 cm, glabrous or glabrate. |
30–120 cm, densely and persistently tomentose, eglandular. |
Leaves | surfaces glabrous or glabrate; basal and proximal cauline with petiole 1–2 mm; blade obovate to oblanceolate, oblong, or oblong-lanceolate, 4–12(–20) × 1.5–5 cm, base subrounded to broadly cuneate; cauline subclasping, gradually smaller distally, base not decurrent, margins coarsely and regularly crenate-dentate to dentate or pinnately dentate-lobed, apex of distal cauline and floral bracts acute. |
surfaces densely and persistently tomentose, eglandular; basal and proximal cauline with petiole 10–30 mm; blade obovate to oblong-ovate, 5–25(–30) × 4–8(–12) cm, base attenuate; cauline not clasping, gradually smaller distally, base long-decurrent, margins crenate, apex of distal cauline and floral bracts long-acuminate. |
Inflorescences | unbranched, rarely branched from proximal nodes, narrowly cylindric, flowers remote, solitary in axils at least distally; rachis stipitate-glandular, without other vestiture; bracts ovate to lanceolate-ovate, 7–10(–15) mm, base decurrent, apex acute to short-acuminate, stipitate-glandular. |
unbranched, narrowly cylindric, sometimes branched from proximal nodes, forming a panicle, flowers densely overlapping, in clusters of 2–8; rachis densely and persistently tomentose, eglandular; bracts ovate, 15–40 mm, base decurrent, apex long-acuminate, densely and persistently tomentose, eglandular. |
Pedicels | free or adnate to rachis at base, 5–11(–15) mm; bracteoles 0. |
free or adnate to rachis at base, 3–15 mm; bracteoles 2. |
Flowers | calyx 5–7 mm, stipitate-glandular, lobes linear-lanceolate to narrowly oblong; corolla purple in bud, becoming yellow, yellow-orange, yellow with purple center, white, cream with red-tinged tips, or pink, 25–35 mm diam., pellucid glands absent or relatively few; proximal filaments hairy, hairs purple, distal pair villous, hairs white and purple or violet; stigma spatulate, base decurrent. |
calyx 5–12 mm, densely and persistently tomentose, eglandular, lobes ovate-lanceolate to lanceolate; corolla yellow, 30–55 mm diam., pellucid glands absent or relatively few; proximal filaments glabrous, distal pair villous, hairs white or yellow, anthers orange; stigma spatulate, base decurrent. |
Capsules | subglobular, 5–8 mm, sparsely stipitate-glandular apically. |
elliptic-ovoid, 5–8 mm, tomentose. |
2n | = 18, 30, 32. |
|
Verbascum blattaria |
Verbascum densiflorum |
|
Phenology | Flowering May–Jul(–Oct). | Flowering May–Aug. |
Habitat | Stream banks, lake edges, ditches, dry hills, railroad rights-of-way, orchards, prairies, open oak woods, rocky meadows, roadsides, fields, disturbed sites. | Fields, roadsides, disturbed sites. |
Elevation | 0–1300 m. (0–4300 ft.) | 50–300 m. (200–1000 ft.) |
Distribution |
AL; AR; AZ; CA; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MO; MS; MT; NC; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; BC; NB; ON; QC; Europe; Asia [Introduced in North America; introduced also in Pacific Islands (Hawaii, New Zealand), Australia]
|
IA; MA; MI; MO; WI; Europe; Asia [Introduced in North America; introduced also in South America (Chile), Australia] |
Discussion | Verbascum ×pterocaulon Franchet is a hybrid between V. blattaria and V. thapsus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Verbascum ×humnickii Franchet is a hybrid between V. densiflorum and V. thapsus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 346. | FNA vol. 17, p. 348. |
Parent taxa | Scrophulariaceae > Verbascum | Scrophulariaceae > Verbascum |
Sibling taxa | ||
Synonyms | V. thapsiforme | |
Name authority | Linnaeus: Sp. Pl. 1: 178. (1753) | Bertoloni: Rar. Lig. [Ital.] Pl. 3: 52. (1810) |
Web links |
|