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Helianthus spp. are a nectar producing flowering plant that attract pollinators and parasitoids which reduce the pest populations in nearby crop vegetation. Sunflowers attract different beneficial pollinators (e.g., honey bees) and other known insect prey to feed on and control the population of parasitic pests that could be harmful to the ...
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 .
Helianthus devernii is a North American species of flowering plant in the daisy family Asteraceae, known by the common name Red Rock sunflower.The perennial herbaceous plant is endemic to a portion of Nevada's Red Rock Canyon National Conservation Area measuring less than 1 acre (4,000 m 2), where it grows in just two desert spring locations within the Mojave Desert.
With some 190 genera and nearly 2500 recognized species, only the tribes Senecioneae and Astereae are larger. The name is derived from the genus Helianthus, which is Greek for sun flower. Most genera and species are found in North America (particularly in Mexico) and South America. A few genera are pantropical.
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 ]
The Jerusalem artichoke (Helianthus tuberosus), also called sunroot, sunchoke, wild sunflower, [3] topinambur, [3] or earth apple, is a species of sunflower native to central North America. [ 4 ] [ 5 ] It is cultivated widely across the temperate zone for its tuber , which is used as a root vegetable .
Asteraceae species are generally easy to distinguish from other plants because of their unique inflorescence and other shared characteristics, such as the joined anthers of the stamens. [7] Nonetheless, determining genera and species of some groups such as Hieracium is notoriously difficult (see "damned yellow composite" for example). [8]
Helianthus strumosus, the pale-leaf woodland sunflower, [3] is a species of sunflower native to North America east of the Great Plains and is in the family Asteraceae. [4] It is a native perennial sunflower that resembles other members of this family including the Pale Sunflower (H. decapetalus), Woodland Sunflower (H. divaricatus), Hispid Sunflower (H. hirsutus), and Jerusalem Artichoke (H ...