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Heliantheae

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Heliantheae
Plant
Artículo WikipediaFuente Dbpedia
Heliantheae is the third largest tribe in the sunflower family (Asteraceae). 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 and South America, particularly in Mexico. A few genera are pantropical.Most Heliantheae are herbs or shrubs, but there are some that grow to the size of small trees. Leaves are usually hairy and arranged in opposite pairs. The anthers are usually blackened.The above statements about the size and distribution of the tribe apply to a broad definition of Heliantheae, which was followed throughout the 20th century. Some recent authors break the tribe up into a dozen or so smaller tribes.
Heliantheae

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Fecha publicación: 21.2.2015

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