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molène blattaire, moth mullein

Habit Annuals or biennials.

60–150 cm, glabrous or glabrate.


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.


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.


free or adnate to rachis at base, 5–11(–15) mm;

bracteoles 0.


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.


subglobular, 5–8 mm, sparsely stipitate-glandular apically.


= 18, 30, 32.

Verbascum blattaria

Phenology Flowering May–Jul(–Oct).
Habitat Stream banks, lake edges, ditches, dry hills, railroad rights-of-way, orchards, prairies, open oak woods, rocky meadows, roadsides, fields, disturbed sites.
Elevation 0–1300 m. (0–4300 ft.)
from FNA
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]
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Verbascum ×pterocaulon Franchet is a hybrid between V. blattaria and V. thapsus.

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

Source FNA vol. 17, p. 346.
Parent taxa Scrophulariaceae > Verbascum
Sibling taxa
V. bombyciferum, V. densiflorum, V. lychnitis, V. nigrum, V. phlomoides, V. phoeniceum, V. pulverulentum, V. sinuatum, V. speciosum, V. thapsus, V. virgatum
Name authority Linnaeus: Sp. Pl. 1: 178. (1753)
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