Skullcap only grows wild in the most beautiful, serene forest streams. Pretty much. Which is why it brings such a sense of peace to many people. This I think, having met the plant in it's native home.
Turtlehead sometimes grows nearby. Its flower is a turtle head - seriously. Sticking its tongue out. And it can be used medicinally - it gives people giggles. Giggleiferous. Haven't tried out my tincture yet... Check it.