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Term Definition
Angiosperm A flowering plant whose seeds are borne within a fruit derived from a carpel or carpels. Flower of Chamerion angustifolium. Photo by C. A. Gracie.
APG (Angiosperm Phylogeny Group) The organization responsible for coordinating a new classification of the Angiosperms based on anatomical, morphological, chemical, and, most importantly, molecular data. Their most recent classification is found on the Angiosperm Phylogeny Website at http://www.mobot.org/mobot/research/apweb/. Flower of Chamerion angustifolium. Photo by C. A. Gracie.