Sticky perennial herb to about 1.5 m tall. Leaves ovate to spoon-shaped, to 20 cm or so long, the bases extending down the stem, the upper ones surrounding the stem and with 'eared' bases. Flowers greenish white, whiter inside, fragrant at night; summer. Calyx to 2.5 cm long. Corolla to 10 cm long, funnel-shaped, sticky-hairy, pale green. Fruit to about 2 cm long.
Argentina to S Brazil.
The commercial tobacco N. tabacum, with pink-tinged, white, funnel-shaped flowers, is an occasional escape from cultivation.
The cultivar N. 'Grandiflora' is listed.
N. sylvestris Speg. from Argentina is grown as an annual, it has white flowers with slightly swollen corolla tubes 6.5 to 8.5 cm and flat-topped shallowly cut corolla lobes.
Source: (2002). Solanaceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.