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bract    
n. 苞叶,苞

苞叶,苞

bract
n 1: a modified leaf or leaflike part just below and protecting
an inflorescence

Bract \Bract\, n. [See {Bractea}.] (Bot.)
(a) A leaf, usually smaller than the true leaves of a plant,
from the axil of which a flower stalk arises.
(b) Any modified leaf, or scale, on a flower stalk or at the
base of a flower.
[1913 Webster]

Note: Bracts are often inconspicuous, but sometimes large and
showy, or highly colored, as in many cactaceous plants.
The spathes of aroid plants are conspicuous forms of
bracts.
[1913 Webster]


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  • Bract - Wikipedia
    In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale Bracts are usually different from foliage leaves in size, color, shape or texture
  • Learn About Plant Bracts: What Is A Bract On A Plant - Gardening Know How
    What is a bract on a plant? The simple answer is that it’s the part that’s found above the leaves but below the flower What does it look like? The answer to that question is a little tougher Plants are unbelievably diverse, and that diversity comes from evolution
  • Bract | plant structure | Britannica
    bract, Modified, usually small, leaflike structure often positioned beneath a flower or inflorescence What are often taken to be the petals of flowers are sometimes bracts—for example, the large, colourful bracts of poinsettia s or the showy white or pink bracts of dogwood blossoms
  • BRACT Definition Meaning - Merriam-Webster
    The meaning of BRACT is a leaf from the axil of which a flower or floral axis arises
  • What is a Bract? (with picture) - Home Questions Answered
    A bract is a part of a plant that may resemble a leaf or a petal Structurally, a bract is most similar to a leaf, but it usually is slightly different from the plant's leaves Some bracts are green while others are colored
  • 9 Types Bracts and Bracteoles | Plants - Biology Discussion
    The below mentioned article will highlight the nine important types of bracts and bracteoles in plants They are: (1) Leafy or Foliaceous Bract (2) Petaloid Bract (3) Spathy Bract (4) Involucral Bract (5) Scaly Bract (6) Cupule (7) Epicalyx (8) Glume and (9) Lemma and Palea
  • What Is a Bract in a Flower? - The Function of Bracts
    What is a bract in a flower? Bracts are modified leaves which often look like petals of a flower, but they are actually supportive structures which help protect the vulnerable inflorescence





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