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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.
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 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.
Underside of a sunflower sea star. Sunflower sea stars can reach an arm span of 1 m (3.3 ft). They are the heaviest known sea star, weighing about 5 kg. [4] They are the second-biggest sea star in the world, second only to the little known deep water Midgardia xandaros, whose arm span is 134 cm (53 in) and whose body is 2.6 cm (roughly 1 inch) wide. [7]
On 14 October 2022, Phoebe Plummer and Anna Holland of Just Stop Oil threw two tins of soup at an 1888 Sunflowers painting by Vincent van Gogh at the National Gallery in London, glued themselves to the wall and asked the crowd whether they were more concerned by the protest or by the effects of climate change on the planet. They had been ...
The succulent leaves of the sunflower stores water in absorbent, spongy portions of the leaves. Helianthus anomalus also has large seeds and rapid root growth, which contribute to its ability to survive in its extreme environment. [3] It is believed that large seeds are adaptive to dune plants because the large seed size prevents burial by the ...
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The genus Helichrysum / h ɛ l ɪ ˈ k r aɪ s əm / consists of an estimated 600 species of flowering plants in the sunflower family ().The type species is Helichrysum orientale.They often go by the names everlasting, immortelle, and strawflower.