瘦果 （achene）指小形、干燥、果皮坚硬、不开裂、内有一粒种子，是闭果的一种。果皮坚硬，只含一粒种子。果皮与种皮仅有一处相连，易分离。如向日葵、荞麦等的果实。

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.

1) Achene (or sometimes called an akene)瘦果—defined as a one-seeded fruit with the seed attached to the fruit at one point only. 包括向日葵，蒲公英（Dandelion parachutes）。 2) Caryopsis or Grain颖果—is defined as a one-seeded fruit in which the seed is firmly attached to the fruit at all possible points.

achene, dry, one-seeded fruit lacking special seams that split to release the seed. The seed coat is attached to the thin, dry ovary wall (husk) by a short stalk, so that the seed is easily freed from the husk, as in buckwheat. The fruits of many plants in …

May 16, 2024 · An achene is considered a dry fruit which does not bloom or release its seed upon maturity. Instead, the seed resides inside a husk or shell until it reaches suitable ground and germinates into a new plant.

achene，英语单词，主要用作名词，作名词时译为“ [植] 瘦果”。 [1] N a dry one-seeded indehiscent fruit with the seed distinct from the fruit wall. It may be smooth, as in the buttercup, or feathery, as in clematis 瘦果 [1] Ovary and achene body pubescent. 子房和瘦果身体短柔毛。 It is described here as an achene because it is indehiscent, as opposed to a typical, dehiscent follicle.

Jan 30, 2024 · Achene is a type of dry fruit that does not split open (indehiscent) and contains a single seed (Figure \(\PageIndex{6}\)). The small brown dots on top of strawberries are examples of achene fruits. Strawberries are a special type of fruit called an accessory fruit, which does not develop from the ovary of the flower but instead develops from ...

An achene is a one-seeded, dry, indehiscent fruit with seed attached to the pericarp at one point only, such as the unit fruits of sunflowers. From: Plant Systematics (Second Edition), 2010

Long-headed windflower is native to sandy and rocky fields, hillsides and woodlands in all New England states. It is an upright, slender plant, and its cylindrical clusters of fruits (achenes) are also much taller than wide), giving it its alternative common name of "candle anemone" or …

May 18, 2018 · 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 …