Endemic to arid-subtropical regions of South Asia, particularly the Indian subcontinent, Euphorbia lactea thrives in diverse habitats, from rocky outcrops in full sun to dry deciduous forests in partial shade and even disturbed sites like roadsides.Its small, yellow-tinged flowers (cyathia) grow at the stem tips but rarely appear in cultivation. One of the most popular Euphorbia succulents, it comes in various colors, including green, reddish-purple, pink, and variegated forms. Crested varieties are often grafted onto other plants and sold as "mermaid tail cactus." When damaged, Euphorbia lactea produces a toxic, milky latex.