A. rosea may refer to: * Acrasis rosea, a heterolobosean species * Aerides rosea, an orchid species * Alcea rosea, the hollyhock, an ornamental plant species * Antennaria rosea, the rosy pussytoes, a flowering plant species * Atriplex rosea, the tumbling saltbush, red orach or tumbling orach, a saltbush species