The sunflower (Helianthus annuus) is an annual plant in the family Asteraceae, with a large flower head (capitulum). The stem of the flower can grow up to 3 metres tall, with a flower head that can be 30 cm wide.
Helianthus or sunflowers (from the Greek: ήλιος, Hēlios, "sun" and ανθός, anthos, "flower") L. /ˌhiːliˈænθəs/ is a genus of plants comprising about 70 species in the family Asteraceae, all of which are native to North America except three species in South America. The common name "sunflower" also applies to the popular annual species Helianthus annuus, the common sunflower. This and other species, notably Jerusalem artichoke (H. tuberosus), are cultivated in temperate regions as food crops and ornamental plants.
Bellis perennis is a common European species of daisy, of the Asteraceae family, often considered the archetypal species of that name. Many related plants also share the name "daisy", so to distinguish this species from other daisies it is sometimes qualified as common daisy, lawn daisy or English daisy. Historically, it has also been commonly known as bruisewort and occasionally woundwort (although the common name woundwort is now more closely associated with Stachys (woundworts)). Bellis perennis is native to western, central and northern Europe, but widely naturalised in most temperate regions including the Americas and Australasia.

#2: Sunflower (Sunfola variety) against a blue sky.
Taken in Victoria, Australia.
Image source: en.wikipedia.org

#4: The involucre of a sunflower (Helianthus)
Image source: commons.wikimedia.org

Left: #18: African Daisy (Osteospermum) 'Soprano Lilac Spoon', Red Cactus Flower
Right: #18b: African Daisy (Osteospermum) 'Pink Whirls'
Image source: Left: pixabay.com
Right: commons.wikimedia.org
flickr.com

#19: Osteospermum cultivar 'Flower Power Spider Purple'
Left image Right image
Image source: commons.wikimedia.org
commons.wikimedia.org

#20: Osteospermum cultivar 'White Spoon'
Image source: en.wikipedia.org

#21: Osteospermum cultivars
Left image Right image
Image source: commons.wikimedia.org
commons.wikimedia.org

#22: Margarita Africana, Cape daisy
Left image Right image
Image source: commons.wikimedia.org
commons.wikimedia.org

#23: Argyranthemum frutescens
Left image Right: Argyranthemum frutescens (Madeira Crested Merlot flowering habit). Location: Maui, Walmart Kahului
Image source: commons.wikimedia.org
commons.wikimedia.org
Reference: Wikipedia Argyranthemum

#24: Argyranthemum cultivars
Left: Keukenhof, Plantae, Angiosperms
Right: Ollantaytambo gardens - Sacred Valley & Incan Ruins, Peru
Image source: commons.wikimedia.org
commons.wikimedia.org
Reference: commons.wikimedia.org Category:Argyranthemum cultivars