I have a bulbous plant that I received as a gift from a friend who didn't know the name of the plant. It is a houseplant and the bulb grows half emerged from the soil. It seems to have some scaling type growth and the edges are brown. The stems are long and the leaves are arrow shaped and medium green with some dark spotting on them. It is blooming now and the stems elongate and flop down sometimes reach up again toward the sunlight. It likes shade and grows outside in heavy shade in SC. The flowers are small and green in a cluster atop the long stems. Do you know what this plant is? Help!!!!