Sunflower simple drawing tutorial pictures
Sunflower (Latin: Helianthus annuus), belonging to the sunflower family, is an annual with a height of 1 to 3.5 meters. The stem is upright, round and angular, hard and covered with white coarse hairs. The broad ovate leaves are usually alternate, with sharp or acuminate apex, 3 veins at the base, coarsely serrated edges, rough hairs on both sides, and long stalks. Flower heads, 10 to 30 cm in diameter, solitary on stem tops or branch ends.
The involucral bracts are multi-layered, the leaves are arranged in an imbricate shape, and are covered with long bristles. They bloom in summer and have neutral yellow tongue-shaped flowers on the edge of the inflorescence, which are not fruitful. The middle part of the inflorescence is a bisexual tubular flower, brown or purple, capable of fruiting. Rectangular oval achenes with lignified skin, gray or black, called sunflower seeds. Native to South America, the domesticated species was brought to Europe from North America by the Spaniards in 1510 and was initially used for ornamental purposes.
At the end of the 19th century, it was introduced back to North America from Russia. It is cultivated in China. Sunflower seeds are called sunflower seeds. They are often fried and eaten as snacks. They are delicious. Sunflower oil can also be squeezed for consumption, and the oil residue can be used as feed.
