Stems mostly flattened except at the base. Flowers orange.
E Brazil
Two other species with similar stems have different flower colours — L. houlletianum (Lem.) Barthlott from E Brazil with toothed stems and creamy flowers, and L. micranthum (Vaupel) Barthlott with wavy-edged stems and white flowers.
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.
