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Helianthus maximiliani is native to the Great Plains in central North America, and naturalized in the eastern and western parts of the continent. It is now found from British Columbia to Maine, south to the Carolinas, Chihuahua, and California. The plant thrives in a number of ecosystems, particularly across the plains in central Canada and the ...
Helianthus (/ ˌ h iː l i ˈ æ n θ ə s /) [3] is a genus comprising around 70 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers. [ 4 ] [ 5 ] Except for three South American species, the species of Helianthus are native to North America and Central America .
The Sonoran Desert. The Sonoran Desert is a North American desert and ecoregion which covers large parts of the southwestern United States and of northwestern Mexico. With an area of 260,000 square kilometers (100,000 sq mi), it is the hottest desert in Mexico.
Outside of cultivation, the common sunflower is found on moist clay-based soils in areas with climates similar to Texas. In contrast, the related Helianthus debilis and Helianthus petiolaris are found on drier, sandier soils. [22] The precise native range is difficult to determine.
Helianthus annuus — common sunflower; Helianthus couplandii — Coupland's sunflower; Helianthus decapetalus — thin-leaved sunflower; Helianthus divaricatus — woodland sunflower; Helianthus giganteus — tall sunflower; Helianthus maximiliani — Maximillian's sunflower; Helianthus nuttallii — Nuttall's sunflower; Helianthus pauciflorus ...
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Helianthus occidentalis, the fewleaf sunflower or western sunflower, [3] is a species of sunflower native to the Eastern and Central United States. It grows mostly in the Great Lakes Region and in the Ozarks , with additional populations scattered as far as Massachusetts , Texas , and the Florida Panhandle .
Helianthus giganteus is a perennial herbaceous plant native to the northern United States and southern Canada that can grow up to 1–3 metres (3.3–9.8 ft) tall with instances to 4m (13 feet). The leaves are approximately 1 inch wide by 7 inches long, and partly rough.