Alocasia is a genus comprising of more than 70 unique perennial flowering plants. Prominent features of this genus include large-sized attractive foliage and underground rhizomes as the rooting system. Alocasians are cultivated and hybridized on a large scale. This results in a large number of unique cultivars and varieties. These include the famous Alocasia amazonica and the gigantic Alocasia macrorrhizos.