學名：Alocasia wentii Engl. & K.Krause
英名：Hardy Elephant Ears、Purple Umbrella Elephant Ear、New Guinea Shield
A perennial herb in the genus Alocasia, native to New Guinea and neighboring islands. The large plant can reach up to 2m high, petioles robust, purple or green. Peltate leaves up to 1m long, with undulated margins, green and shiny leaf surfaces, and purple-red undersides. Spathe long, oval and green, and spadix white. Rarely flowering in horticultural cultivation.
The plant does best in partial-sun and warm environments. High moisture can promote the growth. Culture soil rich in organic matter is preferred. Water when the medium slightly dries or the leaves show a sigh of wilting. Water directly into the soil instead on the leaves to avoid leaving white scales on the leaf surface. Apply a slow-release compound fertilizer once every season in spring and summer. During the chilly winter, keep the plant indoors to prevent defoliation and dormancy. Propagation by cuttings and division.
The large foliage plant can be used for interiorscaping design as a background plant to create contrast effect. The leaf resembles Alocasia odora (Lodd.) Spach in shape, but the smoother leaf surface and red undersides make it more ornamental. Alocasia plants contain calcium oxalate crystals in the sap which can cause skin irritation if incidentally contacted, wear gloves when handling the plant.