File:Flower_morphology_-_longitudinal_section_showing_achene_formation_and_hypanthium_in_Rosa-01.svg · Wikimedia Commons · See Wikimedia Commons
achene
Sign in to saveAlso known as monocarpellate fruit
thumb|Rosa hypanthium encircling separate achene fruits An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not open at maturity). Achenes contain a single seed that nearly fills the pericarp, but does not adhere to it. In many species, what is called the "seed" is an achene, a fruit containing the seed. The seed-like appearance is owed to the hardening of the fruit wall (pericarp), which encloses the solitary
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thumb|Rosa hypanthium encircling separate achene fruits An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not open at maturity). Achenes contain a single seed that nearly fills the pericarp, but does not adhere to it. In many species, what is called the "seed" is an achene, a fruit containing the seed. The seed-like appearance is owed to the hardening of the fruit wall (pericarp), which encloses the solitary seed so closely as to seem like a seed coat.
==Examples== The fruits of buttercup, buckwheat, caraway, quinoa, amaranth, and cannabis are typical achenes.