The answer to 'what is grass' is grass is a type of herbaceous plant that forms the groundcover in many landscapes. Grass is characterized by its narrow, blade-like leaves and fibrous roots that grow close to the ground. Grass is an essential component of lawns, parks, and other green spaces, providing a soft, cushiony surface for walking and playing.
Grass plants are typically low-growing and spread by underground stems called rhizomes or aboveground stems called stolons. There are many different species of grass, each with its own unique characteristics in terms of color, texture, and growth habit. Common lawn grasses include Kentucky bluegrass, tall fescue, and perennial ryegrass, among others.