- CAM Plants for Green Roofs, Effects of Heat and of Humidity
- Adaptation and Green Roof Plants
|Under Intense Sunlight Leaves Fold to Prevent Desiccation|
Some plants, and many of these are excellent species to use on Green Roofs, can move, open or close their leaves to prevent dessication. This is commonly referred to heliotropism and paraheliotropism.
|Under optimal Sunlight C3 Leaves Open Widely|
|Under Optimal Sunlight Conditions C3 Leaves Open Widely|
Diaheliotropism describes a plant whose leaves actually track the sun'd path, maximizing solar contact.
Paraheliotropsim denotes a plants actions similar to the above photographs. During paraheliopropsim, plants may fold or move their leaves to either;
- Minimize solar contact, or
- Minimize total leaf surface area,
Green Roof designers take note!