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bract    
n. 苞葉,苞

苞葉,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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英文字典中文字典相關資料:
  • 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
    Plants are simple, right? If it's green it's a leaf, and if it's not green it's a flower? Right? Not really There's another part of the plant, somewhere between a leaf and a flower, which you don't hear too much about It's called a bract Learn more here
  • 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 poinsettias or the showy white or pink bracts of dogwood
  • 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 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
  • Understanding The Significance Of Bracts In Botany And Horticulture
    Each type of bract has its own fascinating characteristics and role within the plant’s life cycle From protection and support to attracting pollinators and aiding in seed dispersal, bracts are essential components of plant biology
  • 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
  • Bracts: A Detailed Comprehensive Exploration
    Clemson University Home Garden Information Center: Contributed detailed horticultural information on bougainvillea, including its bract characteristics and care requirements





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