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Sunflower:Sunflower, Helianthus annuus, is an herbaceous annual plant in the family Asteraceae, grown for its seeds. The plant has a thick, hairy, erect stem which gives rise to a large flower head. The plant has large, broad lower leaves which are oval and arranged alternately on the stem and smaller, narrower upper leaves which are attached individually to the stem. The flower head is a large disc reaching 10–30 cm (4–12 in) in diameter which is made up of 16–30 individual florets which are yellow-gold in color. The outer florets are sterile and produce the outer petals of the flower head, while the inner florets will mature into the seeds in the central disc. Sunflowers are annual plants, harvested after one growing season and can reach 1–3.5 m (3.3–11.5 ft) in height. Sunflower may also be referred to as girasole and originates from North America.Cockscomb:Cockscomb flowers are also known as Wool Flowers or Brain Celosia, suggestive of a highly colored brain. The flowers belong to the amaranth family, Amaranthaceae. Cockscomb blooms with a compacted crested head 2-5 inches across, on leafy stems that are 12-28 inches long. The flower's name is suggestive of a rooster's comb. The Cockscomb flower blooms from late summer through late fall. The Celosia plant is an annual dicotyledon.Kingdom:- PlantaeDivision:- MagnoliophytaClass:- MagnoliopsidaOrder:- CaryophyllalesFamily:- AmaranthaceaeCelosia species include Celosia argentea and Celosia spicata. Cockscombs are the crested variety (Celosia cristata). The flowers come in attractive red leafed varieties as well. Although there are many dwarf cultivars available today, the original types were fairly tall plants. Three forms were introduced into England from Asia in 1570.