向日葵也叫葵花,朝阳花,转日莲,是一年生的油料作物。我国栽培历史悠久,资源丰富。内蒙古是大面积栽培向日葵的省区之一。在栽培上向日葵分为食用、油用和中间型三种类型。食用种茎秆高大,叶片数多,果实形状大而长,皮壳厚,子仁小,分枝多,晚熟。油用种茎秆矮小,叶片数较少,互生,果实呈倒卵圆形,皮壳饱满,分枝少,早熟。中间型茎秆、花盘以及叶片数介于食油型两者之间。 Sunflowers, also known as sunflower, sunflowers, lotus day, is an annual oil crop. China has a long history of cultivation and is rich in resources. Inner Mongolia is a large area of ​​sunflower cultivation of one of the provinces. In cultivated sunflower is divided into edible, oil and intermediate three types. Edible species of tall stalks, the number of leaves and more fruit shape large and long, the shell is thick, small seeds, branches and more, late maturity. Oil stalks with short stature, the number of leaves less, alternate, the fruit was obovate, full-hull, less branched, precocious. Intermediate stalks, disk and leaf number between the oil type between the two.