Rudbeckia
Freesia
One plant native to South Africa that is cultivated for its striking yellow flowers is the Aloe maculata, commonly known as the spotted aloe. This succulent features rosette-shaped leaves and produces tall flower spikes adorned with vibrant yellow blossoms. It is often used in gardens and landscaping for its ornamental appeal and drought resistance. Another notable example is the Sparaxis, also known as the Harlequin flower, which showcases bright yellow flowers among a variety of other colors.
The plant you are referring to is likely the sunflower (Helianthus annuus). Sunflowers are native to North America and are cultivated for their large, showy flowers with golden yellow rays around a central disk. They are commonly grown for their seeds, as well as for their ornamental value in gardens and landscapes.
Any yellow, ray-flowered member of the Asteraceae could fit this bill. There are literally hundreds, if not thousands, of possible species. The list would certainly be narrowed down by naming only those that are cultivated. Two very common possibilities include Rudbeckia and Helianthus. There are countless others.
Laburnum.
In sub-tropical areas, allamanda cathartica is a soft shrub with clusters of bright yellow flowers at the tips of twigs. Not strongly fragrant, at least not in my garden.
Yes, the tapioca plant, scientifically known as Manihot esculenta, is a flowering plant. It belongs to the spurge family, Euphorbiaceae, and produces small, white or yellow flowers. However, it is primarily cultivated for its starchy tuberous roots, which are the main source of tapioca.
Rudbeckia
Bird of paradise(Strelitsa reginae), flame of the forest(Spathodea campanulata), and Royal Poinciana(Delonix regia) tropical trees which produce orange flowers.Specifically, the bird of paradise, which is native to tropical Africa, produces spikey orange flowers. The flame of the forest, which is native to South Africa, produces flowers which may be crimson, reddish orange or yellow. The Royal Poinciana, which is native to Madagascar, produces flowers which range in color from orange to red or yellow.
One example is the azalea, a flowering shrub known for its vibrant and showy flowers that come in various colors such as white, pink, purple, and yellow. Azaleas are popular in landscaping for adding color and beauty to gardens and outdoor spaces.
Wattle flowers are yellow.
Vegetable flowers are not all yellow.