词汇 | compound-leaf |
释义 | compound leaf noun[ C ] biology specializeduk /ˌkɒm.paʊnd ˈliːf/ us /ˌkɑːm.paʊnd ˈliːf/ a type of leaf that is formed from a number of smaller leaves all joined to one stem复叶 gilotyna/iStock/Getty Images Plus/GettyImages Parts of plants axil bark bilobed blade bulb caning cascara sagrada corolla endodermis floret inflorescence knot pistil rooty rosella seed coat seed pod sessile sting taproot Fortunes are told by pulling off leaflets of a compound leaf, such as the locust, repeating, "Rich man, poor man," etc. It is never a real compound leaf, though, unless the leaflets are truly separate and all belong on one common stalk. The stalk of a leaflet in a compound leaf. Examples of compound leafcompound leaf At the border of the compoundleaf zones carrying leaflets and tendrils, mixed leaflet\\tendril pairs are frequent, both organs having proper identity. Each compoundleaf ends in a branched tendril. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The leaf is arranged in alternate and is pinnately compoundleaf venation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The leaf lamina is notably pinnatifid with some areas almost being a compoundleaf structure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The compoundleaf stem is 3 to 10 cm long, mostly flattened on the top part, with two sharp edges. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Leaflets without a stalk, but the compoundleaf has a stalk between 1 to 3 cm long. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These finger-like segments are not individual leaves, but parts of a single compoundleaf. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The compoundleaf stem is between 2 and 10 cm long. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each compoundleaf consists of 30-40 leaflets, lanceolate to obovate-lanceolate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The ultimate free division (or leaflet) of a compoundleaf, or a pinnate subdivision of a multipinnate leaf is called a pinnule or pinnula. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The compoundleaf stalk is brown and hairy, swollen where it joins the branchlet. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each leaflet is 2.511 cm long and 1245 mm wide, with those towards the end of the compoundleaf tending to be smaller. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A "terminal leaflet" is seen on the end of the compoundleaf. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The two main classes of compoundleaf morphology are palmate and pinnate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each compoundleaf contains 1533 pairs of bright green leaflets long. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of compound leaf These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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