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Helianthus (/ ˌ h iː l i ˈ æ n θ ə s /) [3] is a genus comprising around 70 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers.
Helianthus petiolaris is a North American plant species in the family Asteraceae, commonly known as the prairie sunflower [2] or lesser sunflower. [3] Naturalist and botanist Thomas Nuttall was the first to describe the prairie sunflower in 1821. [4] [5] The word petiolaris in Latin means, “having a petiole”. [5]
Its common name is Schweinitz's sunflower. It is a member of the sunflower family . It is one of the rarest species of sunflower in the United States. It is common along utility and highway rights-of-way in North Carolina and South Carolina. There are only about 90 known populations, many containing less than 40 plants each. [2]
Sunflower is the common sunflower (Helianthus annuus), a species of annual flowering plant first domesticated in the Americas. Sunflower or Sunflowers may also refer to: Helianthus , the genus of plants known as sunflowers
Commercially important plants in the Heliantheae include sunflower and Jerusalem artichoke. Many garden flowers are also in this group, such as Coreopsis, Cosmos, Echinacea, Rudbeckia, and Zinnia. Some authors separate Coreopsis and Cosmos into the Coreopsideae tribe. [1] In contrast to the benefits brought by the group, some are problematic weeds.
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Each floret is a flower in its own right. The modern name Asteraceae comes from the type genus Aster and the Ancient Greek word for "star", referring to the appearance of a star with surrounding rays. The stems are leafy, ranging in height from as low as 30 centimetres (12 inches) to more than 1.8–2.4 metres (6–8 feet).
The common sunflower (Helianthus annuus) is a species of large annual forb of the daisy family Asteraceae. The common sunflower is harvested for its edible oily seeds, which are often eaten as a snack food. They are also used in the production of cooking oil, as food for livestock, as bird food, and as a plantings in domestic gardens for ...