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Horseweed is commonly considered a weed, and in Ohio, Oregon, and some other locations, [11] it has been declared a noxious weed. [12] [13] It was the first weed to have developed glyphosate resistance, reported in 2001 from Delaware. [14] It can be found in fields, meadows, and gardens throughout its native range.
Conyza (horseweed, butterweed or fleabane) is a genus of flowering plants in the family Asteraceae. [4] [5] [6] [7]They are native to tropical and warm temperate regions throughout the world, and also north into cool temperate regions in North America and eastern Asia.
Solidago, commonly called goldenrods, is a genus of about 100 [1] to 120 [2] species of flowering plants in the family Asteraceae.Most are herbaceous perennial species found in open areas such as meadows, prairies, and savannas.
Solidago leavenworthii, or Leavenworth's goldenrod, [2] is North American species of herbaceous perennial plants of the family Asteraceae. It is native to southeastern United States from Florida north to Georgia and the Carolinas .
Solidago rigida, known by the common names stiff goldenrod and stiff-leaved goldenrod, is a North American plant species in the family Asteraceae. It has a widespread distribution in Canada and the United States, where it is found primarily east of the Rocky Mountains . [ 2 ]
Solidago rugosa, commonly called the wrinkleleaf goldenrod [2] or rough-stemmed goldenrod, [3] is a species of flowering plant in the family Asteraceae.It is native to North America, where it is widespread across eastern and central Canada (from Newfoundland to Ontario) and the eastern and central United States (Maine west as far as Wisconsin and Iowa, south to Florida and Texas). [4]
Goldenrod is a common name for many species of flowering plants in the sunflower family, Asteraceae, commonly in reference to the genus Solidago. Several genera, such as Euthamia , were formerly included in a broader concept of the genus Solidago .
Solidago altissima, the tall goldenrod [5] or late goldenrod, [6] is a North American species of goldenrod in the family Asteraceae which is widespread across much of Canada, the United States, and northern Mexico. It is common in much of its range and fairly tolerant of landscapes which have been disturbed by humans.