CiM Prairie Grass is an opaque, light green that is just slightly less yellowish than Effetre's 212 Pea Green. The saturation and shade is almost identical, but the hue is slightly different.
It is slightly streaky.
If you like pea green, you will probably enjoy this. If you are making subtle colour transitions, you may find this very useful.
CiM reports that this was created to be a response to the now unavailable Vetro Parrot Green. I believe that Parrot Green was a more vibrant colour though.
A nice spring, leafy green.