Sunflower has alternate leaves, broad leaves, three basal veins, rough serrated edges, rough sides, long stems and solitary flower heads at the top of stems or branches.
What color is the sunflower?
Sunflowers are orange, light yellow, purple, yellow, brown, deep purple and so on. There are tongue-shaped flowers and tubular flowers on the disk. Tongue-shaped flowers are asexual flowers with orange, light yellow and purple, which can attract insects to collect honey for pollination.
Morphological characteristics of sunflower leaves
Sunflowers have a pair of cotyledons. True leaves are opposite at 1-3 nodes at the lower part of the stem, and above are alternate. True leaves are relatively large, and there are short and hard bristles on the leaves and petioles.
What does sunflower seed look like?
Edible sunflower seeds are long, with more black and white stripes, thick skin, short oil sunflower seeds and black and thin skin.
What do the roots of sunflowers look like?
The root of sunflower consists of taproot, lateral root and fibrous root. The taproot is deep underground, and the lateral root grows from the taproot and grows horizontally. There are many fibrous roots on the lateral roots, which are covered with root hairs.
Sentences describing sunflowers
1. Sunflower is always lonely at night, because it needs to bear the night alone, without warmth and companionship, waiting for dawn in the long night. In April, it was sunny and drizzling, and every household in Nanshan became clear. There are no catkins in the wind, only sunflowers that open to the sun.
Characteristics of sunflower plants
Sunflower, also known as sunflower, sunflower, sunflower, sunflower, belongs to the genus Panicum in the family Helianthaceae, with a plant height of 1-3.5m and an erect stem. The varieties of sunflower are divided into edible sunflower, ornamental sunflower and mixed sunflower. They are native to tropical areas and have strong adaptability to temperature. They are warm and hardy plants.
Sunflower picture appreciation