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Alas, most sunflowers are annual flowers, meaning they do not come back each year like perennial flowers. But, there's a few pieces of good news. But, there's a few pieces of good news.
The disk of a sunflower is made up of many little flowers. The ray flowers here are dried In North Carolina A sunflower seed growing. Sunflowers are usually tall annual or perennial plants that in some species can grow to a height of 300 centimetres (120 inches) or more. Each "flower" is actually a disc made up of tiny flowers, to form a larger ...
Helianthus pumilus is a North American species of sunflower known by the common name little sunflower [1] or bush sunflower. [2] It is found in the western United States, primarily the Rocky Mountain region of Montana , Wyoming , and Colorado , with a few isolated populations in Utah and Idaho .
Helianthus microcephalus is a perennial species of Helianthus also known as small woodland sunflower [1] or small-wood sunflower or small-head sunflower [3] or simply as woodland sunflower. [2] It is a native of Northern America, and is to be found growing in open woodlands and along roadsides.
Helianthus californicus is an erect perennial herb growing from a network of tough, woody roots with small rhizomes. It is a sprawling, gangly plant, sending a thin stem to heights between one and three meters (3–10 feet) or more. The lance-shaped leaves may be 20 centimeters (8 inches) long and are smooth or slightly toothed along the edges.
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.