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Some sunflowers are perennials and others are annuals. Here's what to know about each type. ... It’s hardy in Zones 6-9. Tall sunflower (H. giganteus). Though its common name isn’t very ...
Heliopsis helianthoides is a rhizomatous herbaceous perennial growing 40–150 cm (16–59 in) tall. The toothed leaf blades are oval to triangular or lance-shaped and may be smooth or hairy or rough in texture. The flowers are produced from midsummer to early autumn (fall). [8] The inflorescence contains one to many composite flowerheads.
Phoebanthus, called false sunflower, is a genus of North American plants in the tribe Heliantheae within the family Asteraceae. [1] [2]Phoebanthus includes two species of herbaceous perennials that are both native to the southeastern United States The genus is a close relative of Helianthus, the genus of the common sunflower, and the plants have the general appearance of a sunflower.
A honey bee collecting nectar from an apricot flower.. The nectar resource in a given area depends on the kinds of flowering plants present and their blooming periods. Which kinds grow in an area depends on soil texture, soil pH, soil drainage, daily maximum and minimum temperatures, precipitation, extreme minimum winter temperature, and growing degre
The Illinois List of Endangered and Threatened Species is reviewed about every five years by the Illinois Endangered Species Protection Board (ESPB). [1] To date it has evaluated only plants and animals of the US state of Illinois, not fungi, algae, or other forms of life; species that occur in Illinois which are listed as endangered or threatened by the U.S. federal government under the ...
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 .
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