Radiata

Lycoris is a block that is found in the Obsidium biome. Along with Lycoris, it tends to surround near Obsidium Rock. Lycoris grows Obsidium Vines on it.[1]

[1] Based off the 0.11.7.4 update note "(Lycoris no longer grows vines (only Radiata does, since only Lycoris gre the plants)"