Pictures of the actress are set to appear in James Houston's “Natural Beauty” book

Mar 22, 2013 07:36 GMT  ·  By

She may not be doing “50 Shades of Grey” or any other such movie anytime soon, but British actress Emma Watson is ready and willing to bare it all, as long as it is for a noble cause.

Hence her agreeing to collaborate with photographer James Houston on the latter's “Natural Beauty” project.

Since “Natural Beauty” is all about promoting sustainability and green-oriented behaviors and attitudes by raising awareness with respect to the beauty of nature, it need not come as a surprise that the book is basically a collection of portraits of several environmentally conscious celebrities.

The pictures James Houston took of Emma show the actress wearing nothing except some flowers, sources say.

“My friend is supporting Global GreenUSA with his book Natural Beauty. It’s out now. : )” Emma Watson tweeted this past March 20.

The “Natural Beauty” book is expected to hit shelves this coming April, and some select pictures are to be put on display at the Milk Gallery in NYC.