The species was first described by Arun Kumar Thirovoth Kottuvetta and P. Manimohan in the journal Mycotaxon in 2009, in a survey of the genus Lepiota in Kerala State in southern India.

[1] The fruit bodies of Lepiota babruzalka have caps that start out roughly spherical, and as they expand become broadly convex, and eventually flat, with a blunt umbo.

The stem is cylindrical with a bulbous base, initially solid before becoming hollow, and measures 2.6–4.5 cm (1.0–1.8 in) long by 1–1.5 mm thick.

Cheilocystidia (cystidia on the edge of the gill) are plentiful, and can assume a number of shapes, including cylindrical to club-shaped, utriform (like a wineskin bottle), to ventricose-rostrate (where the basal and middle portions are swollen and the apex extends into a beak-like protrusion).

[1] The gill tissue is made of thin-walled hyphae containing a septum, which are hyaline to pale yellow, and measure 3–15 μm wide.

[1] According to the authors, the only Lepiota bearing a close resemblance to L. babruzalka is L. roseoalba,[1] an edible mushroom[2] described by Paul Christoph Hennings in 1891.

[1] Fruit bodies of Lepiota babruzalka grow singly or scattered on the ground among decaying leaf litter around the base of bamboo stands.