achene

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achene

(əkēn`), dry, simple, one-seeded fruit with the seed attached to the inner wall at only one point. Achenes are indehiscent, i.e., they do not split open at maturity. The so-called seed of a sunflower is an achene; the shell is the wall of the fruit, and the true seed lies within. A strawberry consists of many achenes embedded in a fleshy receptacle.

Achene

 

a monospermous indehiscent fruit of angiospermous plants. An achene consists of two carpels with an inferior ovary; it has a dry, leathery pericarp (in Compositae and Dipsacaceae). Winglike processes, pappi, hooklets, and other formations often develop to promote distribution of the fruit. The achene of Dipsacaceae falls off with a sheath of concresced bracts; in some Compositae (cocklebur, globe thistle) the achene falls off with the sheath of the head.

achene

[ə′kēn]
(botany)
A small, dry, indehiscent fruit formed from a simple ovary bearing a single seed.
References in periodicals archive ?
Edwards and Vavasseur (1829) first referred to the seed as an achene.
In other parts of Europe, the achenes of buckwheat also regularly appear in medieval culture layers (cf.
Whereas, year effect was also found significant with heavier 1000 achenes in first year (2012) than the following year (2013).
four irrigations were applied 25 days after sowing (DAS), at bud initiation, flower initiation and achene formation with no ABA spray.
Significant increase in Growth (LAI, TDM, LAD, CGR) and yield components (head diameter and number of achenes per head) with nitrogen increment ultimately produced significant increase in achene yield (Ozer et al.
2 mm long, the appendages ovate; style branches ca 1 mm long, the apices subulate; achenes dimorphic; those from the ray flowers obovate, ca.
Young JA, Clements CD, Pitcairn MJ, Balciunas J, Enloe S, Turner C, Harmon D (2005) Germination-Temperature profiles for achenes of yellow starthistle (Centaurea solstitialis).
Groundsels are self-fertilizing plants that produce parachute-adorned achenes that carry seeds considerable distances by wind.
The florets are replaced by small achenes that are 1.
Achenes are dry, indehiscent, single-seeded fruits.
Strawberries differ from the latter two in having small, dry, individual fruits or achenes attached to an enlarged juicy receptacle.