英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Anemone cylindrica — long-headed windflower - Go Botany
    Achene relative orientation the achenes are perpendicular to the plane of the perianth (vertical) Achene shape
  • Achene - Wikipedia
    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
  • Sunflower - Helianthus annuus | Kew
    Despite their name, sunflower seeds are actually the fruit of the sunflower, known as an ‘achene’ The common sunflower is part of the Aster family, which also includes artichoke, lettuce, chamomile and safflower
  • Achene | Fruit, Seed, Structure | Britannica
    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
  • Achene - Encyclopedia. com
    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
  • Achene - an overview | ScienceDirect Topics
    The achene consists of two parts: the hull and the groat The hull (pericarp, fruit coat) is the outer layer of the achene; usually its color varies from glossy or dull dark gray to brown or black The inner part of the achene is the groat (Fig 7 1 B)
  • Achene
    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 The achenes of the strawberry are familiar, where the "seeds" are achenes
  • Achene - Definition, Variations, Bur-oak Acorns, Examples and FAQs
    Answer: An Achene is a small and thin-walled one-seeded dry indehiscent fruit It is a common fruit type and is the one most likely to be mistaken for an (a chunky) seed, given that it is nothing more than a seed along with an additional thin covering, the “pericarp” (or the ovary wall)
  • Achene - Master Gardeners of Northern Virginia
    When you hear the word achene, you may think of the seeds of sunflowers Although many botanical works still refer to the fruits of Asteraceae (commonly called the aster, composite, daisy, or sunflower family) as achenes, some botanists consider them to be cypselae
  • What is an Achene? (with pictures) - Home Questions Answered
    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





中文字典-英文字典  2005-2009