Stems mostly 3-5 angled, often purplish and with scalloped margins. Areoles white-hairy in the margin notches. Flowers lateral, whitish inside. Fruit more or less spherical.
SE Brazil to N Argentina
L. ianthothele (Monv.) Barthlott has flowers pale yellow inside.
Source: (1997). Cactaceae. In: . Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.