Fennel seeds do come from the fennel plant. The bulbs, foliage, and seeds of the fennel plant can be eaten.
Anise seeds are a good substitute for fennel seeds in some recipes.
The English word for "saunf" is fennel seeds.
Fennel
It is difficult to provide an exact ratio as it varies depending on the size and weight of the fennel stalk. However, on average, you can expect to get around 1-2 tablespoons of fennel seeds from one fennel stalk.
Saunf is called fennel seeds in English.
Saunf
Sometime in April.
The Telugu translation for fennel seeds is "సొప్పు" (soppu).
Dried fennel seeds have a shelf life of three to six months. If you use the seeds after this time period, you may notice that the flavor has started to fade.
Somewhere between 1/8 to 1/4 of a teaspoon, depending on how strong the fennel seeds are.
Fennel seeds in Hindi are called "saunf" (सौंफ). They are commonly used in Indian cooking for flavoring and for their digestive properties.