What is a stolon?

A stolon is a stem that grows above the ground, which is crucial for the propagation of certain grass species. It often stretches out horizontally along the soil surface and can root at the nodes where it touches the ground, allowing the plant to spread and fill in bare areas. This characteristic is particularly significant in turfgrass management, where stoloniferous grasses can naturally recover from wear and tear by sending out new growth. Understanding the role of stolons helps in managing golf course turf, particularly in terms of maintenance and overseeding strategies.

The other choices related to roots or underground structures do not accurately define a stolon. The definition as a stem that grows above the ground highlights its distinct role in plant propagation and growth, aligning with the understanding of turfgrass behavior.