Flower Structure
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State
A complete flower carries four organ types arranged in whorls: sepals, petals, pollen-bearing stamens, and ovule-containing carpels.
Show
A stamen's anther produces pollen; a carpel's ovary at its base houses one or more ovules awaiting fertilization.
Watch for
Not every flower carries all four organ types — an incomplete flower can lack sepals, petals, or a whorl and still function.