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Some florist lillies look like a bell.
A yellow bell is considered a complete flower. It contains all of the reproductive parts like the pistils, sepals, stamens, etc.
Some florist lillies look like a bell.
These are the flowers of the Kowhai tree (Sophora).
You may refer to the pendulous sulphur-yellow flower of the Kowhai. Indeed that word is used in Maori for yellow'. There are many varieties/species of Kowhai. A good nectar source for the nectar feeding birds such as Bellbird, Tui, Wax eye, and so on, so a common favourite for suburban gardens.
Any yellow flower like a marigold or a sunflower.
Ralitsa is a Bulgerian flower which looks like a church bell!
bellflowers are flowers that has a similarity with a morning flower. The difference is that bellflowers are color white.
It means that someone's or something's life is just beginning like a flower's.
A dumb head like yours
Bell flower trees are native to the tropical regions of Central and South America, particularly in countries like Brazil, Colombia, and Venezuela. They thrive in warm and humid climates with plenty of sunlight.
It could be a tansy, I don't know.