Reseda luteola, commonly known as dyer's woad or weld, is a flowering plant in the Resedaceae family. It is native to Europe and parts of Asia but has been introduced to other regions. The plant typically grows to about 1 meter tall and features slender, upright stems with narrow leaves. Its yellow flowers bloom in dense spikes during the summer months. Historically, Reseda luteola has been valued for its use as a natural dye. The leaves contain compounds that produce a vibrant yellow color, which was widely used in textile dyeing before the advent of synthetic dyes. Today, it is still cultivated for its dyeing properties and is appreciated in natural dyeing practices.