Gossypium herbaceum

from Wikipedia, the free encyclopedia
Gossypium herbaceum
Gossypium herbaceum 002.JPG

Gossypium herbaceum

Systematics
Eurosiden II
Order : Mallow-like (Malvales)
Family : Mallow family (Malvaceae)
Subfamily : Malvoideae
Genre : Cotton ( gossypium )
Type : Gossypium herbaceum
Scientific name
Gossypium herbaceum
L.

Gossypium herbaceum is a plant from the genus cotton ( Gossypium ). It comes from tropical Asia and isgrownfor the production of cotton fibers.

description

Gossypium herbaceum is an annual or perennial plant, it remains herbaceous or can become woody. It reaches a height of up to 1.5 m. The stem axis , leaf stalks, flower stalks and the leaves are hairy. The leaves are usually five-lobed, less often three- to seven-lobed. The leaf lobes are broadly oval and pointed. The leaf is round in outline with a diameter of 2 to 5 cm, according to other information 5 to 10 cm, the base of the leaf is heart-shaped. The petiole is 2 to 3.5 cm, (up to 8 cm) long. The leaf stalk and both leaf sides are hairy, especially the leaf veins on the underside of the leaf. The stipules are narrow, 0.5 to 1.2 cm long, they soon fall off.

The flowers are solitary in the leaf axils. The flower stalks are 0.7 to 2 inches long and hairy. The outer cup consists of three at the base intergrown bracts . They are wider than long, up to 3 cm in size, sparsely hairy on the veins, with six to eight teeth in front, heart-shaped at the base. The bowl-shaped goblet is five-lobed or cut straight. The petals are yellowish, each with a reddish spot at the base. They are inverted egg-shaped and measure 2.5 to 3.5 cm in length by 3 to 4 cm in width. The columna is 1 cm long.

The capsule fruit is three to five parts, oval or elongated, beaked in front. It grows to 2.5 to 3 cm in size. The oval seeds are 0.6 to 0.9 cm in size. They are surrounded by long white fibers and short, relatively firmly adhering fibers.

The number of chromosomes is 2n = 26.

distribution

Gossypium herbaceum is native to Southwest Asia. It is cultivated in tropical Asia.

use

Gossypium herbaceum is a supplier of cotton fibers .

literature

  • Ya Tang, Michael G. Gilbert, Laurence J. Dorr: Gossypium herbaceum . In: Wu Zhengyi, Peter H. Raven (Ed.): Flora of China . tape 12 . Missouri Botanical Garden Press, St. Louis, S. 297 ( eFloras.org - 1994+).
  • Sultanul Abedin: Gossypium herbaceum . In: SI Ali, M. Qaiser (Ed.): Flora of Pakistan . tape 130 . Missouri Botanical Garden Press, St. Louis, S. 30 ( eFloras.org ).

Individual evidence

  1. ↑ a b c d Sultanul Abedin: Gossypium herbaceum . In: Flora of Pakistan . Vol. 130, p. 30.
  2. ↑ a b c d e Ya Tang, Michael G. Gilbert, Laurence J. Dorr: Gossypium herbaceum . In: Flora of China . Vol. 12, p. 297.
  3. ^ Gossypium herbaceum at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis.

Web links

Commons : Gossypium herbaceum  - album with pictures, videos and audio files