Helianthus
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Helianthus is a genus comprising around 50 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers. The species of Helianthus are native to North A
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
Asteraceae
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Asteraceae is a large family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the order Asterales. The number of species in Asteraceae is rivaled only by the
A typical Asteraceae flower head, showing the (five) individual ray florets and the (approximately 16) disk florets of Bidens torta specimen
Discoid flowerheads of Delairea odorata
Anemochory in Carlina