Guayusa (Ilex Guayusa)

[Chinaski]

Guayusa, or Ilex Guayusa, or the 'Night Watchman':

A rainforest stimulant, a tree that is rich in caffeine (stimulating), theobromine (stimulating) and l-theanine (tranquilizing). A coffee and green tea alternative, it actually tastes a little like a combination of the two would taste like (presumably, I have no intentions to try that), but it's not an unpleasant taste. It's also less jittery than coffee.
The dried leaves (anywhere from 1 to, say, 7 grams) are boiled/simmered for 15 to 30 minutes (and you can even reuse them after that).
It has some resemblances with Yerba Maté (effect and taste wize), which belongs to the same (Ilex) family.
Besides the wakeful alertness and calmly stimulating effects, dream recalling properties are also attributed to these leaves, when taken early in the morning.