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.

2024年1月30日 · 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 ...

2024年5月16日 · 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.

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 …

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 (they do not open at maturity). Achenes contain a single seed. In many species, what we think of as the "seed" is actually an achene, a fruit containing the seed.

Achene is a small hard one-seeded fruit, in which the pericarp closely surrounds the seed but can be easily separated from it, such as wooded hypolytrum, Indian mock strawberry, Meyen's Clematis, Chinese arrow-head.

2018年5月18日 · 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 …