sunflower

Sunflowers (scientific name: Helianthus annuus) are tall, annual plants known for their large, daisy-like flower heads and their ability to turn to face the sun, a phenomenon known as heliotropism. They belong to the Asteraceae family and are native to North and Central America, though they are cultivated worldwide for their beauty and various practical uses.

The most recognizable feature of sunflowers is their large flower heads, which can measure up to a foot (30 centimeters) in diameter. Each flower head consists of a central disk made up of hundreds to thousands of tiny florets surrounded by bright yellow or golden petals, giving it a sun-like appearance. These vibrant flowers attract pollinators such as bees and butterflies, aiding in the plant's reproduction.

Sunflower stems are tall and sturdy, often reaching heights of 5 to 10 feet (1.5 to 3 meters) or more, depending on the variety. The leaves are large, coarse, and rough to the touch, arranged alternately along the stem. Sunflower leaves are typically broad and heart-shaped, with serrated edges.

In addition to their ornamental value, sunflowers are cultivated for their seeds, which are rich in nutrients and oil. Sunflower seeds are a popular snack and are also pressed to extract sunflower oil, which is used in cooking, cosmetics, and industrial applications.

Sunflowers thrive in full sunlight and well-drained soil, making them a common sight in gardens, fields, and even along roadsides. They are easy to grow from seed and are often planted for their beauty as well as for their beneficial properties in attracting pollinators and providing food for birds and other wildlife.