Bulgarian Journal of Agricultural Science [accessed October 15, 2014]; 14(4):397-404, International Sunflower Guerrilla Gardening Day, "Parastichy pair(13:21) of CYCAS REVOLUTA (male) florets_WebCite", National Center for Biotechnology Information, "Sunflower Genome Holds the Promise of Sustainable Agriculture", Companion Planting: Basic Concept and Resources, Allelopathic potential of sunflower on weed management in safflower and wheat, "Botanical cleanup crews: using plants to tackle polluted water and soil", "Sunflowers to clean radioactive soil in Japan", "Sunflowers melt Fukushima's nuclear "snow, "Sunflowers in the blooming stage are not heliotropic anymore. Seeds are used by Hidatsa, Rees, Mandan and Gros Ventres for alleviating fatigue. The seeds are used to extract edible oil, Sunflower Oil which is a very rich in Vitamin E and unsaturated fatty acid. These mature into fruit (sunflower "seeds").  Some recently developed cultivars have drooping heads. Folate helps to promote cardiovascular health from birth to old age. This particular pigment is responsible for providing color in your hair. Seeds and nuts help to lower the risk of hyperglycemia and also balance the level of blood sugar.  Young sunflowers orient themselves in the direction of the sun.  Sunflower leaves are broad, coarsely toothed, rough and mostly alternate. Composite flowers are solitary or in small clusters, usually nodding, and 10 to 40 cm wide on the stems. Calories 745 Kcal. Origin of Extant Domesticated Sunflowers in Eastern North America. Heuzé V., Tran G., Hassoun P., Lessire M., Lebas F., 2018. Sunflowers are usually planted in the extreme southern or northern regions of the country. Seeds could be added to muffins, cakes and candies. Sunflower seeds additionally include copper that is essential for maintaining a healthy skin. In accordance with research, sunflower seed oil might help safeguard the skin of infants born prematurely by reduction of the risks of skin infection and disease. Roasted seeds are consumed as snack food. Rub sunflower oil onto scalp and the soles of your feet at bedtime. Also, they are best dietary options for copper that is involved with melanin formation. " The uniform alignment of sunflower heads in a field might give some people the false impression that the flowers are tracking the Sun. Noteworthy Characteristics. Siniša Jocic´, ... Yalcin Kaya, in Sunflower, 2015. The flowers are so abundant that they literally blanket the entire bush and cover the foliage of coarse, dark green leaves. Sunflower, (genus Helianthus), genus of nearly 70 species of herbaceous plants of the aster family (Asteraceae). It contains 50% of multiple unsaturated fats which the highest content is essential linoleic fatty acid, which is an essential forerunner of omega 6 fatty acids which is beneficial for reducing cholesterol level in blood. Sunflowers are native primarily to North and South America, and some species are cultivated as ornamentals for their spectacular size and flower heads and for their edible seeds. The tincture prepared from bark and flowers are helpful for fevers and intermittent fevers. However, as the flower bud matures and blossoms, the stem stiffens and the flower head becomes fixed facing the eastward direction.". Hazards and/or side effects not known for proper therapeutic dosages. Several ornamental cultivars of H. annuus have red-colored ray florets; all of them stem from a single original mutant. This species was one of several plants cultivated by Native Americans in prehistoric North America as part of the Eastern Agricultural Complex. The oil is also sometimes used in soap.. Most cultivars of sunflower are variants of Helianthus annuus, but four other species (all perennials) are also domesticated. lenticularis (Douglas ex Lindley) Steyermark, Helianthus annuus var. Free-flowering, Helianthus 'Lemon Queen' (Sunflower) is ideal to brighten up the late season garden. The outer flowers, which resemble petals, are called ray flowers. The oil is also used in preparation of the skin conditioners, emulsifiers, cleansers and thickeners. Sunflower seeds have purines or oxalates.  Annual species are often planted for their allelopathic properties. They can bear one or more wide, terminal flower heads, with bright yellow ray florets at the outside and yellow or maroon (also known as a brown/red) disc florets inside. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Terms & conditions Athletes consume sunflower seeds as it offers high content of protein and carbohydrates. The petiolate leaves are dentate and often sticky. The disc flowers are very large. They were used to remove caesium-137 and strontium-90 from a nearby pond after the Chernobyl disaster, and a similar campaign was mounted in response to the Fukushima Daiichi nuclear disaster. The common sunflower (H. annuus) is an annual herb with a rough hairy stem 1–4.5 metres (3–15 feet) high and broad, coarsely toothed, rough leaves 7.5–30 cm (3–12 inches) long arranged in spirals. Zinc found in sunflower seed encourages hair growth. The fatty acids have got anti-bacterial qualities that safeguard the skin from bacteria, therefore decreasing the occurrence of acne. and was well known to Aztects and is still used by traditional Mesoamerican cultures. Studies have shown that seeds provide calming effect on brain and also assist to uplift mood. A model for the pattern of florets in the head of a sunflower was proposed by H. Vogel in 1979. Your email address will not be published.  Researchers have concluded that the soybean-sunflower method of plantation could be further improved through changes in fertilizer use. Camazine, Scott and Robert A. Bye (1980) A Study Of The Medical Ethnobotany Of The Zuni Indians of New Mexico. Bright yellow petals are used to treat eye problems. Sunflower seeds have high content of magnesium which helps to lower blood pressure and lowers the chances of stroke and heart attack. It ought to also be consumed moderately as too much of it may cause hair loss. Xian Lim Slams Arnold Clavio’s Typhoon Ulysses Insensitive Comment? 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