Had to really think about this letter. E would seem easy, but I found it otherwise.
White - Electric lights. In fact I became quite taken with this topic and photographed a number of lights in the house.
Plant life - nothing looking really nice in the garden at the moment, so I took a photo of an Evergreen tree - this one is a macadamia.
Terrifying things - Effigy. Not terrifying to us, perhaps, but certainly culturally effigies are objects of terror in many places.