|Under Intense Sunlight Leaves Fold to Prevent Desiccation|
|Under optimal Sunlight C3 Leaves Open Widely|
|Under Optimal Sunlight Conditions C3 Leaves Open Widely|
Diaheliotropoism describes a plant whose leaves actually track the sun'd path, maximizing solar contact.
Paraheliotroposim denotes a plants actions similar to the above photographs. During parahelioproposim, plants may fold or move their leaves to either;
- Minimize solar contact, or
- Minimize total leaf surface area,