Online Google Dictionary

bract 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/brakt/,
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bracts, plural;
  1. A modified leaf or scale, typically small, with a flower or flower cluster in its axil. Bracts are sometimes larger and more brightly colored than the true flower, as in a poinsettia

  1. a modified leaf or leaflike part just below and protecting an inflorescence
  2. (bracted) bracteate: having bracts
  3. In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis, or cone scale. Bracts are often (but not always) different from foliage leaves, for example being smaller, larger, or of a different color or texture.
  4. A leaf or leaf-like structure from the axil of which a the stalk of a flower or an inflorescence arises
  5. (Bracts) A leaf like or scale like plant part, usually small, sometimes showy or brightly colored, and located just below a flower, a flower stalk, or an inflorescence.”
  6. (bracts) small leaf or leaf-like structures beneath a flower or flower cluster that sometimes become protectors of the fruit
  7. (Bracts) These are modified leaves that grow just below a flower or a flower cluster, usually green in color, but sometimes conspicuous and colorful, e.g. bougainvillea and poinsettia.
  8. (Bracts) Leaves that develop just below the flowers on some plants. For example, poinsettia bracts, which most people think are the flowers because they turn red, pink, or white. On close inspection, however, you will discover the flowers singly or in clusters above.
  9. (Bracts) Modified leaves associated with flowers or flower clusters. Bracts in Compositae include peduncular bracts, units of a calyculus, phyllaries (primary involucral bracts), secondary involucral bracts, and paleas (receptacular bracts).
  10. (Bracts) Much modified and much reduced leaves usually found in inflorescences, variously dispersed, but frequently at the base of flowers or flower stalks.
  11. (Bracts) Small specialized leaves that are directly associated with a flower or fruit. Go Back
  12. (Bracts) The leaflike structures of a grouping or arrangement of flowers (inflorescence). A green leaf-like structure which has a flower in its axil, and which may remain on the plant with the fruit. Bracts vary enormously in size, shape and function.
  13. (Bracts) modified leaves around sex organs or gemmae.
  14. (Bracts) or bractlets are leaf-like or petal-like appendages, sometimes attached to the base of a pedicel or in an inflorescence in many plants.
  15. A modified leaf at the base of a flower stalk. It may be brightly coloured as in the case of Poinsettias.
  16. a much reduced or modified leaf subtending a flower or inflorescence.
  17. A modified leaf that bears a flower.
  18. a modfied leaf on a flowering stem usually just below the flower or along the inflorescence
  19. A leaf-like structure associated with flowers and fruits.   [To return to previous page, click your browser's BACK button then scroll through the page to your last location]
  20. n. a modified leaf, growing at the base or on the stalk of a flower; usually differs from other leaves in shape or color. If bright colored, it helps attract pollinators. See illustration .
  21. A series of structures immediately below the flower head which may look like a leaf, petal, or spine.
  22. A modified leaf, often reduced in size and with little photosynthetic capability.
  23. siphosomal element, usually containing much mesoglea, with a protective or buoyancy function
  24. a specialized leaf with a single flower or inflorescence growin in its axil.
  25. modified leaves surrounding the inflorescence or flower, more or les different from ordinary leaves; always stalkless (sessile). (click here to see composite-flower)