What is Tea?
All real teas: green, black, oolongs, white and yellow come from the same plant Camellia Sinensis. The differences between those teas are mostly due to the differences in their processing.
A great source for info about tea is:
about half way down check out all the names for tea and lower down are steeping times but we recommend longer steeping times for stronger flavor without a bitter taste. Really, each person can make each tea to his own taste. When you start adding milk, honey, and lemon you can't even taste the tea.
Click on images below to learn more.