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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
    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 Are Bracts? Their Features, Functions, and Examples
    Conversely, a bract is a modified leaf that is attached to the stem below the flower or inflorescence and is not considered a direct component of the flower’s four main whorls The presence of these structures helps botanists classify and identify different plant species
  • 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
  • BRACT Definition Meaning | Dictionary. com
    BRACT definition: a specialized leaf or leaflike part, usually situated at the base of a flower or inflorescence See examples of bract used in a sentence
  • 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
  • Bract - definition of bract by The Free Dictionary
    bract (brækt) n a specialized leaflike plant part, sometimes large and showy, usu situated at the base of a flower or inflorescence





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