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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 ...
The disk of a sunflower is made up of many little flowers. The ray flowers here are dried In North Carolina A sunflower seed growing. Sunflowers are usually tall annual or perennial plants that in some species can grow to a height of 300 centimetres (120 inches) or more. Each "flower" is actually a disc made up of tiny flowers, to form a larger ...
The family is commonly known as the aster, daisy, composite, or sunflower family. Most species of Asteraceae are herbaceous plants, and may be annual, biennial, or perennial, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions, in a wide variety of habitats.
Helianthus annuus 'Russian Giant' is a cultivar of sunflower in the family Asteraceae. [1] It is an annual. [2] [3] [4] Characteristics
Helianthus giganteus, the giant sunflower or tall sunflower, is a species of Helianthus native to the eastern United States and eastern and central Canada, from Newfoundland west to Alberta south to Minnesota, Mississippi, and South Carolina.
The BBCH-scale (sunflower) identifies the phenological development stages of the sunflower (Helianthus annuus). It is a plant species specific version of the BBCH-scale.
Helianthus pumilus is a North American species of sunflower known by the common name little sunflower [1] or bush sunflower. [2] It is found in the western United States, primarily the Rocky Mountain region of Montana , Wyoming , and Colorado , with a few isolated populations in Utah and Idaho .
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.