A. denticulata

A. denticulata may refer to:
 * Aa denticulata, species of orchid in the genus Aa
 * Anthela denticulata, moth of the Anthelidae family
 * Acanthograeffea denticulata, species of stick insect endemic to the Mariana Islands
 * Andrena denticulata, Palearctic species of mining bee
 * Acantholomidea denticulata, species of shield-backed bug in the family Scutelleridae
 * Abagrotis denticulata, species of cutworm or dart moth in the family Noctuidae
 * Acianthera denticulata, species of orchid plant native to Cuba
 * Alternanthera denticulata, species of flowering plants in the family Amaranthaceae
 * Acrisione denticulata, only species in the genus Acrisione
 * Picea mariana, North American species of spruce tree in the pine family (synonym Abies denticulata)
 * Achillea alpina, Asian and North American species of plant in the sunflower family (synonym Achillea denticulata)
 * Alsophila acaulis, species of tree fern native to the Ryukyu Islands, Japan, Taiwan and Hong Kong (synonym Alsophila denticulata)
 * Berismyia fusca, species in the soldier fly family (synonym Antissops denticulata)