Helianthus is the scientific name of Sunflower
They follow the movement of the sun across the sky from east to west, and this process is known as  heliotropism.
Sunflower oil was able to soften leather, condition hair, wounds, and also used as cooking oil, medicine paint
Sunflower with largest flower head is 32 ¼ inches in diameter 
Sunflowers are one of the fastest growing plants and they grow tall