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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. [ 4 ] [ 5 ] Except for three South American species, the species of Helianthus are native to North America and Central America .
Alternaria spp. plant pathogens are found across the world, affecting a variety of species, including sunflowers. It is a major defoliating pathogen in warm humid climates like India and Africa. [1] Farmers and businesses produce sunflowers (Helianthus spp.) for manufacturing oil, edible seeds, and ornamental flowers displays. There are a ...
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 ...
Helianthus debilis is a species of sunflower known by the common names cucumberleaf sunflower, beach sunflower, weak sunflower, [2] and East Coast dune sunflower. [3] It is native to the United States, where it can be found along the Atlantic and Gulf Coasts . [ 4 ]
Helianthus pauciflorus, called the stiff sunflower, is a North American plant species in the family Asteraceae. It is widespread across the Great Plains , the Rocky Mountains , and the Great Lakes region , and naturalized in scattered locations in the eastern United States and in much of southern Canada (from Alberta to Nova Scotia ).
Helianthus debilis subsp. cucumerifolius, or cucumberleaf dune sunflower, is a subspecies of the species Helianthus debilis in the genus Helianthus, family Asteraceae. [ 1 ] [ 2 ] It is native to the South Central regions of the United States and exists naturalized in every continent except Antarctica.
Helianthus silphioides is a North American species of sunflower known by the common names rosinweed sunflower or Ozark sunflower. It is native to the central United States, primarily in the Ozarks and the Tennessee Valley with additional populations north into Kentucky and Illinois and south as far as Louisiana , Mississippi and Alabama .
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