Mint leaves are round with little spike-looking-things at the end, which aren't actually spikes. The plant is always a very green color with many leaves. A picture of a mint plant is at: (copy and paste into address bar) http://www.kidsgardening.com/Dig/digdetail.taf?Type=Art&ID=2081
Mint is a herb.
Probably lemon balm or lemon mint
Mint is from a mint herb.
Mint would be more likely to be described as an herb, than a vegetable. But in biological terms, herbs and vegetables are all plants.
How about mint?!
Mint is a herbaceous plant that belongs to the mint family (Lamiaceae). It is typically a low-growing plant with a creeping habit and does not grow into a shrub, tree, or climber.
mint
Mint is a sweet smelling herb.
Mint is most usually considered a herb, in both senses of the word, although if you don't cut it back it can begin to turn woody.
mint
mint
Neither. It's an herb.