ANDROMEDA, in botany, a genus of the decandria monogynia class. The calix is divided into five parts; the corolla is ovated and quinquisid; and the capsule has five cells or divisions. There are nine species of the andromeda, viz. the tetragona, hypnoides, and cerulea, natives of Lapland and the Alps; the mariana, paniculata, arborea, and caliculata, natives of Virginia; the polifolia, marsh-cistus, or wild rosemary, a native of G. Britain; and the racemosa, a native of Pennsylvania.