Latest Helianthus Stories
As fall fields turn bright with color, what might we learn from roadside rows of sunflowers - and the sunflower seeds widely used to feed birds in colder weather?
For more than a century, Vincent Van Gogh's series of paintings depicting overly-bushy sunflowers were thought to be the result of his alleged mental illness at work.
In addition to being among his most vibrant and celebrated works, Vincent van Gogh's series of sunflower paintings also depict a mutation whose genetic basis has, until now, been a mystery.
New genetic evidence presented by a team led by Indiana University biology doctoral graduate Benjamin Blackman confirms the eastern United States as the single geographic domestication site of modern sunflowers.
New information about early Native Americans' horticultural practices comes not from hieroglyphs or other artifacts, but from a suite of four gene duplicates found in wild and domesticated sunflowers.
As agricultural land becomes increasingly valuable, the need to maximize its utilization increases and decisions about what crops to plant and where, become paramount.
As sunflowers' popularity grows, scientists are looking for new supplements and growing methods to enhance production and quality of this celebrated annual.
Researchers at the University of Cincinnati and Florida State University have confirmed evidence of domesticated sunflower in Mexico â€” 4,000 years before what had been previously believed.
Sunflower farmers say a German study looking into possible links between the plant and AIDS medicine may grab headlines, but they believe it's too early to increase production of the crop.
The family Asteraceae or, alternatively, family Compositae, known as the aster, daisy or sunflower family, is a taxon of dicotyledonous flowering plants. The family name is derived from the genus Aster and refers to the star-shaped flower head of its members, typified well by the daisy. The Asteraceae is the second largest family in the division Magnoliophyta, with some 1,100 genera and over 20,000 recognized species. Only the orchid family (Orchidaceae) is larger, with about 25,000 described...
The sunflower (Helianthus annuus) is an annual plant in the family Asteraceae. The stem of the flower can grow up to 3 meters tall and the large flower head can reach up to 30cm in diameter. The sunflower is notable for turning to face the Sun, a behavior known as heliotropism. History Sunflowers are native to the Americas, and were domesticated around 1000 B.C. Francisco Pizarro found the Inca subjects venerating the sunflower as an image of their sun god, and gold images of the...
- Sleep; the state or condition of being asleep.
- The state or condition of numbness of a part due to pressure on a nerve: as, the obdormition of a limb.