Trillium erectum forma albiflorum ( Trillium - White Erect )

Seen along Porter Creek, Kephart Prong and Appalachian trails and Newfound Gap road
The white form was more common than the red form. Sometimes they are intermingled as shown below.

Great Smoky Mt Nat. Pk. - 4/16/2011 - Newfound Gap road
photos by H & M Ling

Trillium -  White Erect
Trillium -  White Erect