In Tamarind $(Imli)$, the pinnate leaf is:

Reticulate venation is the feature of dicots,but some monocots also exhibit this venation,like:

Which plant exhibits the heterophylly shown in the image below?

$A$ long, thin, flexible $petiole$ allows leaf blades to flutter in wind, thereby cooling the leaf and bringing fresh air to leaf surfaces.

Heterophylly means

The expanded part of the leaf is called the .......