Chlorophyll photo printing... Binh Danh puts negatives on plants and exposes them to light for weeks or months. Link to his website:
http://binhdanh.com/Projects/Life/Life.html

http://philross.org/#projects/mycotecture/

PHOTO | Mark Dion, Neukom Vivarium, 2006. Courtesy the Seattle Art Museum.

VIDEO | Producer: Susan Sollins & Nick Ravich. Camera: John Gordon Hill. Sound: Charles Tomaras. Editor: Steven 

image: copyright 2006 simon jung
For more info:  Feed, A garden raised by TV

For more info (I don't think I could explain it well enough!):  http://www.davidbenque.com/projects/acoustic-botany

Untitled #1336 (Scalapino Nu Shu)
2009-10
 
Apple tree, taxidermy Black Melanistic Pheasants, taxidermy Blue India Peacocks, taxidermy Black Shouldered Peacocks, taxidermy Spaulding Peacocks, taxidermy black squirrel, black sand from pig-iron casting, Acrylex 234, black paint, cement, chicken-wire fencing, wood, gravel, sisal, staging rope, cotton rope, insulated foam sealant, pipe, epoxy. threaded rod, wire, screws, jaw-to-jaw swivels.
 
Overall dimensions:
158 x 247 1/2 x 245 in. (401.3 x 628.7 x 622.3 cm)
 
Collection of the Kemper Museum of Contemporary Art, Kansas City, MO
 
Photograph: Elisabeth Bernstein

www.petahcoyne.org

For more info:
http://www.metmuseum.org/collections/search-the-collections/60051566?img=3