Dandelion (Taraxacum officinale) is a common perennial weed that can invade lawns and gardens. It features bright yellow flowers that turn into white, fluffy seed heads, and has deeply lobed, toothed leaves forming a basal rosette. Dandelions spread rapidly through both seeds and their deep taproots, making them difficult to control. Effective management involves regular lawn maintenance and the use of selective herbicides to target and eliminate Dandelions.