Stem:
A large double ring persists around the stem but often becomes movable and falls to the base. The stem is smooth and white or cream but decorated with small brown scales that often give it a banded, snakeskin appearance. Inside the stem the tough, fibrous flesh is loosely packed, and sometimes the stem is hollow. Bulbous at the base, the stem tapers inwards towards the apex; the diameter ranges from 1 to 1.5 cm, and the stem height can be up to 30 cm.