holophyte

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An organism that produces its own food through photosynthesis.

from The Century Dictionary.

• noun In botany, a plant which manufactures its own food, being in no sense saprophytic or parasitic.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an organism that produces its own food by photosynthesis