It depends on if we should include only those that are always
this, or those that are sometimes
Mushroom and plant creatures are sometimes more creatures that happen to resemble
plants, rather than actually being
plants. That's why I put a "debatably" to the list in those cases.
With individual examples, I would draw the line between a sentient humanoid creature who walks around but still take nourishment from sunlight, water, and the earth (and not actually swallowing any), and someone who's made out of plant matter but still eats like a person. Even flytraps and other carnivorous plants still get a lot of nourishment like other plants, with insects being a supplement, and they still don't have animal organs to process the meat.
edited 1st Oct '12 3:54:24 AM by AnotherDuck