Caladiums are tropical plants known for their vibrant, colorful foliage, primarily grown for their showy leaves rather than their blooms. They are characterized by large, heart-shaped or lance-shaped leaves with a variety of patterns and colors, often combinations of green, white, pink, red, and purple. They are often used in gardens, containers, and as houseplants. 

Here's a more detailed description:

Leaves:

The leaves are the main attraction, with a wide range of colors and patterns. They can be shades of green, white, pink, red, or purple, often with contrasting veins and edges. 

Flowers:

While they are not primarily grown for their flowers, caladiums do produce small, arum-type flowers, which may have a green or pinkish spathe surrounding a white spadix. 

Tuberous Growth:

Caladiums grow from tubers, which are essentially underground stems. These tubers are the source of new growth each year. 

Tropical Origin:

Caladiums are native to tropical regions of South and Central America. 

Varied Cultivars:

There are many named cultivars of Caladiums, including the popular "Heart of Jesus" (Caladium bicolor)