In botany, a bract is a modified or specialized leaf. Botany, plant science(s, phytology, or plant biology is a branch of Biology and is the scientific study of plant Life In Botany, a leaf is an above-ground Plant organ specialized for Photosynthesis. Bracts are ordinarily associated with reproductive structures (subtending flowers, inflorescence axes, or cone scales). A flower, also known as a bloom or Blossom, is the reproductive structure found in Flowering plants (plants of the division Magnoliophyta, also An inflorescence is a group or cluster of Flowers arranged on a stem that is composed of a main Branch or a complicated arrangement of branches They are ordinarily reduced in size relative to foliage leaves, or of a different color or texture from foliage leaves, or both.
Some bracts are brightly colored and serve the function of attracting pollinators, either in concert with or instead of the perianth. The term perianth has two similar but separate meanings in botany In Flowering plants the perianth is the outer sterile whorls of a Flower (see An excellent example of this latter type of bract occurs in the Poinsettia plant (Euphorbia pulcherrima). "Christmas Star" redirects here For the Christian tradition see Star of Bethlehem.
A small bract is called bracteole or bractlet. Technically it is any bract that arises on a pedicel instead of subtending it. In grasses, the bracts that enclose the florets are termed glumes. Chaff (tʃɑːf or /tʃæf/ depending on dialect &ndash both to rhyme with "half" is the inedible dry scaly protective casings of the seeds of Cereal grain, or
Bracts that appear in a whorl subtending an inflorescence are collectively called an involucre. An involucre is a common feature under the inflorescences of many Apiaceae, Asteraceae, and Polygonaceae. The family Asteraceae or Compositae (known as the aster, daisy, or sunflower family) is the largest family of Flowering Polygonaceae is a family of flowering plants also known as the "knotweed family" or "smartweed family" Each flower in an inflorescence may have its own whorl of bracts, in this case called an involucel. Many asteraceous plants have bracts both at the flower base and inflorescence base. The family Asteraceae or Compositae (known as the aster, daisy, or sunflower family) is the largest family of Flowering Those at the flower base — chaff (paleae or receptacular bracts) — are usually minute scales or bristles. Chaff (tʃɑːf or /tʃæf/ depending on dialect &ndash both to rhyme with "half" is the inedible dry scaly protective casings of the seeds of Cereal grain, or Those at the base of the inflorescence or head — the involucral bracts (phyllaries) — are often green, narrow, and leafy.
A prophyll is a leaf-like structure, such as a bracteole, subtending a single flower or pedicel. The term can also mean the lower bract on a peduncle.
A spathe is a large bract that forms a sheath to enclose the flower cluster of certain plants such as palms and arums. Arecaceae or Palmae (also known by the name Palmaceae, which is taxonomically invalid or commonly palm tree) the palm family is a family of Flowering Arum is a genus of about 25 species of Flowering plants in the family Araceae, native to Europe, northern Africa, and western In many arums, the spathe is petal-like, attracting pollinators to the flowers arranged on a type of spike called a spadix. In Botany, a spadix (pl spadices) is a type of spike: an Inflorescence with small Flowers crowded on a thickened fleshy axis
The frequently showy pair of bracts of cyathia of Euphorbia species in subgenus Lacanthis is termed cyathophylls. The very special pseudanthia in the genus Euphorbia ( Euphorbiaceae) are known as Cyathia. Euphorbia is a Genus of Plants belonging to the family Euphorbiaceae.
Bracts subtend the cone scales in the seed cones of many conifers, and in some cases, such as Pseudotsuga, extend beyond the cone scales even in mature cones. Douglas-fir is the common name applied to coniferous Trees of the Genus Pseudotsuga in the family Pinaceae.
Gallery
 Bracts on Leafy-bract Beggar-tick (Bidens comosa) |
 Bracts surrounding a banana flower stalk |
 In Bougainvillea each cluster of three flowers is surrounded by three or six more colorful bracts |
 Bright red bracts of Euphorbia pulcherrima (Poinsettia) |
 Yellow petal-like bracts of Euphorbia epithymoides |
 Euphorbia milii var. For the fruit see Banana. For other meanings see Banana (disambiguation. Bougainvillea is a genus of Flowering plants native to South America from Brazil west to Peru and south to southern Argentina "Christmas Star" redirects here For the Christian tradition see Star of Bethlehem. vulcanii cyathia bearing a pair of pinkish cyathophylls |
 Green bracts surrounding a sunflower bud |
 Showy white bracts of the Kousa Dogwood Cornus kousa |
 Large pink bracts of an Anthurium |
 Colourful bracts of Ananas bracteatus |
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