What is the leaf?
The leaf is part of a plant that may resemble a leaf or petal. Structurally, the leaf is most similar to the leaf, but usually differs slightly from the leaves of the plant. Some documents are green while others are colored. Color documents can be quite clearly colored and are often wrong behind the petals.
Bracts can be many shapes, sizes and textures. They can be larger or smaller than the leaves and petals and are generally harder. Their main function is to protect the flower from pests and harsh weather. When the flower blooms for the first time, it is surrounded by thick green leaves. Some plants have two documents, while others have several. The flower blooms and grows from the documents that remain on the plant and form the base of the flower.
The common flooring plants are Christmas. On plants such as poinsettia and bougainvillea, the documents are often referred to as "false flowers" because the real flowers of the plant are so small and difficult to see. Bracts titoblock flowers in the cluster are called involucre. QuillThe Christmas cakes are small and light green and grow in the middle of the red involucre. Bougainvillea flowers are white and the size of the lens.
bright colored documents are used to protect flowering and to attract pollinating insects. Other common plants with colored documents and insignificant flowers include dogwood, vase and lollipop plant.
On flowers, such as daisies and sunflowers, the documents are a green part that holds the flower to the stem. Bracts of this type are called phylary. There are two types of documents on grass and grains. These types of plants grow with long clusters of flowers, called flowers, top. Each flower finally contains a seed. The flowers are surrounded by two thin, scaly documents, with an inner leaf called palea and an outer bract called Lemma. Whole Floret is surrounded by green leaf or pointed leaves called glumy.
Some documents are adapted to a very specificto whom the functions. Lacts Fiesh Fliors are covered with a sticky acidic substance that captures insects. The acid then breaks and spends insects to provide nutrients for the flower. For lobelia Telekii, tall, conical, hairy plant from cold alpine regions in Africa, the blue-green coat consists of documents that act as insulators.