Same rhododendron, different times of day. When you step outside on a cold winter’s day, have you noticed how rhododendron leaves change their appearance? Usually, they are glossy and full. But when ...

Same rhododendron in different temperatures. When you step outside on a cold winter’s day, have you noticed how rhododendron leaves change their appearance? Usually, they are glossy and full. But when ...

Plants exhibit diverse polar behaviors in response to directional and nondirectional environmental signals, termed tropic and nastic movements, respectively. The ways in which plants incorporate ...