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Is an annual plant native to the Americas. It possesses a large inflorescence (flowering head). The sunflower is named after its huge, fiery blooms, whose shape and image are often used to depict the sun. It has a rough, hairy stem, broad, coarsely toothed, rough leaves and circular heads.

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aka sunflower is an annual plant native to the Americas. It possesses a large inflorescence (flowering head), and its name is derived from the flower's shape and image, which is often used to capture the sun. The plant has a rough, hairy stem, broad, coarsely toothed, rough leaves, and circular flower heads. The heads consist of many individual flowers which mature into seeds, often in the hundreds, on a receptacle base. From the Americas, sunflower seeds were brought to Europe in the 16th century, where, along with sunflower oil, they became a widespread cooking ingredient. Leaves of the sunflower can be used as cattle feed, while the stems contain a fibre which may be used in paper production.

The stem of a sunflower grows from the plume found inside the seed. The plumule is an embryo shoot with a hypocaust stem structure below the point where the plume was attached and an epicycloid stem structure above this attachment point.[1] Since a sunflower is a dicot.

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The root of a sunflower reflects its characteristic of being a dicot. Out of the seed, the first root, radicle, pushes through and develops into a taproot. It continues to expand through primary and secondary tissues. Primary roots develop from primary tissues of the apical trimester.

The root of a sunflower reflects its characteristic of being a dicot. Out of the seed, the first root, radicle, pushes through and develops into a taproot. It continues to expand through primary and secondary tissues. Primary roots develop from primary tissues of the apical trimester that increase the length of the plant. Secondary roots, from secondary tissues of the lateral trimesters give rise to the girth of the plant. Both structures are vital for the growth and strength of the stem.This is opposite of its root structure, which does not include a pith. The vascular bundles consisting of xylem and phloem transport water, mainly acquired from the roots, and food, mainly developed in the leaves, throughout the plant.