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Encyclopedia > Achene

An achene is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (do not open at maturity) and contain a single seed that nearly fills the pericarp (fruit layers), but does not adhere to it. In many species, what we think of as the "seed" is actually an achene, a fruit containing the seed. Typical achenes are the fruits of buttercup and buckwheat. It is sometimes spelled akene, and rarely called achenium or achenocarp. Fruit stall in Barcelona, Spain. ... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also angiosperms or Magnoliophyta) are one of the major groups of modern plants, comprising those that produce seeds in specialized reproductive organs called flowers, where the ovulary or carpel is enclosed. ... A SeeD is a term given to mercenaries trained and employed by Balamb Garden in the Final Fantasy VIII video game. ... This article is about the flower. ... Species Fagopyrum esculentum Fagopyrum tataricum Buckwheat (Fagopyrum esculentum common buckwheat, and Fagopyrum tataricum Tatar buckwheat) are plants in the genus Fagopyrum (sometimes classified as Polygonum) in the family Polygonaceae. ...


Other fruits, such as milkweed and strawberry, are sometimes considered to be types of achenes, although these are accessory fruits. Some of these are bicarpellate. In the case of the strawberry, the fruits (achenes) are the tiny "seed-like" structures on the outside of the fleshy part, which is a modified stem or torus. Botany Asclepias, the milkweeds, is a genus of herbaceous perennial, dicotyledonous plants in the family Asclepiadaceae that contains over 140 known species. ... Species see text The strawberry (Fragaria) is a genus of plants in the Family Rosaceae (Rose Family), and the fruit of these plants. ...


Fruits of sedges are also considered achenes sometimes because it has a one-locule compound ovary. By the same definition, the common fruit type in the Family Asteraceae is also usually considered achene (some term the asteraceous achene cypsela, however). A sunflower "seed" in the husk is not really a seed, but an achene. The white-gray husks are the walls of the fruit. Genera See text The family Cyperaceae, or the Sedge family, is a taxon of monocot flowering plants that superficially resemble grasses or rushes. ... Genera many, see list The aster or sunflower family (Family Asteraceae or, alternatively Family Compositae) is a taxon of dicotyledonous flowering plants. ... Binomial name Helianthus annuus The sunflower (Helianthus annuus) is an annual plant in the Family Asteraceae with a large flower head (inflorescence). ...


A grain, a type of fruit closely resembling an achene, differs in that the pericarp is fused to the thin seed coat in the grain. An assortment of grains The word grain has a great many meanings, most being descriptive of a small piece or particle. ...


A winged achene, such as in maple, is a samara. The MAPLE dedicated isotope-production facility is a current project jointly undertaken by AECL and MDS Nordion. ... Maple samara or key A samara is a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. ...


Utricle is like an achene, but it doesn't have a simple ovary, but a compound one. In addition, its fruit ovary becomes bladdery or corky. Otolith organ Utricle is also a fruit type, found in beet and dock. ...


  Results from FactBites:
 
Achene - Wikipedia, the free encyclopedia (297 words)
Typical achenes are the fruits of buttercup, buckwheat, and dandelion.
The most familiar achenes are those of the strawberry, where the "seeds" are the achenes (technically the 'botanical' fruits), while what is eaten as the ('culinary') fruit is a so-called accessory fruit.
A grain, a type of fruit closely resembling an achene, differs in that the pericarp is fused to the thin seed coat in the grain.
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