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Cotton wool. Cotton wool consists of silky fibers taken from cotton plants in their raw state. Impurities, such as seeds, are removed and the cotton is then bleached using hydrogen peroxide or sodium hypochlorite and sterilized. It is also a refined product (absorbent cotton in U.S. usage) which has medical, cosmetic and many other practical uses.
Eriophorum callitrix, commonly known as Arctic cotton, Arctic cottongrass, suputi, or pualunnguat in Inuktitut, is a perennial Arctic plant in the sedge family, Cyperaceae. It is one of the most widespread flowering plants in the northern hemisphere and tundra regions. Upon every stem grows a single round, white and wooly fruit.
Bombax ceiba, like other trees of the genus Bombax, is commonly known as cotton tree. More specifically, it is sometimes known as Malabar silk-cotton tree ; red silk-cotton ; red cotton tree ; or ambiguously as silk-cotton or kapok , [ 3 ] both of which may also refer to Ceiba pentandra .
The tree and the cotton-like fluff obtained from its seed pods are commonly known in English as kapok, a Malay-derived name which originally applied to Bombax ceiba, a native of tropical Asia. [3] In Spanish-speaking countries the tree is commonly known as " ceiba " and in French-speaking countries as fromager .
Leaf spots can vary in size, shape, and color depending on the age and type of the cause or pathogen. Plants, shrubs and trees are weakened by the spots on the leaves as they reduce available foliar space for photosynthesis. Other forms of leaf spot diseases include leaf rust, downy mildew and blights. [4]
Kapok is a fibrous material classified along with cotton, as plant hairs or seed fibres, unicellular fibres that develop on the inside of the fruit bags. The kapok fibres are 10 to 35 mm ( 3 ⁄ 8 to 1 + 3 ⁄ 8 in) in length and are brittle due to lignification, and only spinnable when blended with other fibres, usually cotton.
Bombax species are used as food plants by the larvae of some Lepidoptera species including the leaf-miner Bucculatrix crateracma which feeds exclusively on Bombax ceiba. The tree appears on the flag of Equatorial Guinea. The tree fibers are 100% cellulose, able to float, impervious to water, and have a low thermal conductivity.
Eriophorum (cottongrass, cotton-grass or cottonsedge) is a genus of flowering plants in the family Cyperaceae, the sedge family. They are found in the cool temperate , alpine , and Arctic regions of the Northern Hemisphere , primarily in the middle latitudes of North America, Europe, and Asia.