Well, I suppose you could call Garlic a herb as it's useful,but it is actually a member of the herb family,so I suppose it's both! LOL
BRW the biggest member (scientifically speaking) of the herb family is the Banana!
The difficulty is,there are plants known as herbs,and then there are plants that are ONLY of the herb family.
The plants that are really herbs have had added to them allied plants that are regarded as herbs.
Now you are really confused? LOL
Sorry that should read:~
Well, I suppose you could call Garlic a herb as it's useful,but it is actually a member of the onion family,so I suppose it's both! LOL