The Betel is the leaf of a vine belonging to the Piperaceae

Piperaceae

The Piperaceae, also known as the pepper family, is a large family of flowering plants. The group contains roughly 3,610 currently accepted species in five genera. The vast majority of peppers can be found within the two main genera: Piper and Peperomia .Members of the Piperaceae may be small...

 family, which includes pepper

Black pepper

Black pepper is a flowering vine in the family Piperaceae, cultivated for its fruit, which is usually dried and used as a spice and seasoning. The fruit, known as a peppercorn when dried, is approximately in diameter, dark red when fully mature, and, like all drupes, contains a single seed...

 and Kava

Kava

Kava or kava-kava is a crop of the western Pacific....

. It is valued both as a mild stimulant and for its medicinal properties. Betel leaf is mostly consumed in Asia, and elsewhere in the world by some Asian emigrants, as betel quid or paan, with or without tobacco, in an addictive psycho-stimulating and euphoria-inducing formulation with adverse health effects.

The betel plant is an evergreen and perennial

Perennial plant

A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter lived annuals and biennials. The term is sometimes misused by commercial gardeners or horticulturalists to describe only herbaceous perennials...

 creeper, with glossy heart-shaped leaves and white catkin

Catkin

A catkin or ament is a slim, cylindrical flower cluster, with inconspicuous or no petals, usually wind-pollinated but sometimes insect pollinated . They contain many, usually unisexual flowers, arranged closely along a central stem which is often drooping...

.