- Country of manufactureUkraine
The stalk grows up to 3 m high, direct, is covered with rigid hairs.
Listyaovalno-serdtsevidnye, dark green color to 40 cm are long, covered with the rigid, short, trimmed hairs.
The flowers of big diameters of 30-50 cm within days turning to the sun (only at young plants).
Petals are reed, orange-yellow, 4-7 cm of long; internal - brown-yellow color, tubular, numerous - from 500 to 3000 pieces.
In a flower there are 4 stamens with accrete boots. They form one flower on one stalk, but meets additional, small shoots.
The sunflower in August for 30 days blossoms.
Fruits - the semyanka which are slightly squeezed slabogranisty 8-15 mm long and 4-8 mm wide. Can be white, gray, black or striped, with a leathery okoloplodnik.
The homeland of a sunflower is North America. Archeologists confirm the fact that Indians cultivated this plant more than 2000 years ago. In Europe this plant appeared at the beginning of the 16th century when Spaniards brought a sunflower and began to grow up it in botanical gardens.
In Russia the sunflower began to be grown up during reign of Peter I which, having seen a sunflower in Holland, disposed to send seeds home and to cultivate this plant.
In leaves and flowers there are a kumarinovy glycoside, skopolin, flavonoids, triterpenovy saponida, carotinoids, antotsiana, fenolkarbonovy acids.
Sunflower - a symbol of unity, justice, prosperity and a sunlight. In some countries even a world symbol.
The sunflower is collected by special devices - harvesters. It grows at the ranks which are settling down at distance the 40-50th from each other. Cleaning demands attentiveness and experience - if not to get on a row, then the stalk will just break and the harvest will decrease.
The main thing in a sunflower are seeds. For the sake of them also grow up this very fertile plant. From one sunflower seeds the whole flower in which about 3 thousand same seeds grows.
Sunflower seeds of a sunflower use crude, fry, extract from them oil which and is called - "sunflower".