Shade plant

Leaf movement

• Active movements are reversible. Some plants use blue-light absorbing pigments as a sensor and pulvinar motor tissue to drive leaf movement. These adaptions are usually slow but relatively efficient. They are advantageous to some shade plants that have low photosynthetic capacity but are occasionally exposed to small light bursts.
• Passive movements are related to drought, where plants employ passive adaptation like increasing leaf reflectance during high light (by for example producing salt crystals on the leaf surface) or developing air-filled hairs.
• Developmental movements are slow and irreversible.