Nicotiana tabacum

Erect viscid annual or short-lived perennial herb to 3 m high; branches with dense glandular hairs. Leaves nearly all cauline, sessile, ovate, elliptic or lanceolate, 20–50 cm long, 3–15 cm wide, with dense glandular hairs, apex acuminate, base attenuate, broadly winged and stem-clasping; upper cauline leaves oblanceolate to elliptic or ovate. Inflorescences terminal, panicle-like, much-branched. Flowers on pedicels 5–10(–15) mm long; calyx tubular to tubular-capanulate, 12–20(–25) mm long, viscid; corolla white or pink, tube (7–)10–15 mm long, outer surface puberulent, limb 10–15 mm diam., lobes acute to apiculate; stamens unequal, upper 4 filaments to 32 mm long, lower filament c. 26 mm long. Capsule narrowly elliptic, ovoid or orbicular, 15–20 mm long; seeds spherical or broadly elliptic, c. 0.5 mm long, wrinkled. Flowers spring–summer.