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..2 Corolla tube 2.5-12.0 cm long, cream, white, yellow, or pink, with limb 10-25 mm wide; leaves auriculate clasping.
....3 Larger leaves on a plant 3.5-8 dm long; corolla tube 3.0-5.5 cm long, 4-7× as long as the average diameter, the limb 10-15 mm wide, pink or reddish (rarely white); [section Nicotiana]
....3 Larger leaves on a plant 1-3 (-5) dm long; corolla tube 2.5-12.0 cm long, 10-50× as long as the average diameter, the limb 15-25 mm wide, white or lavender.
......4 Rosette of a few leaves, not persisting; cauline leaves clasping and decurrent on the stem; [section Alatae]