靛蓝草, also known as Indigofera tinctoria, is a plant native to tropical and subtropical regions. It is primarily cultivated for its leaves, which contain a natural dye called indigo. This dye has been used for centuries to color textiles, making it an important crop in traditional dyeing practices. The plant typically grows to about 1-2 meters in height and produces small, purple flowers. Besides its use in dyeing, 靛蓝草 has also been recognized for its potential medicinal properties, including anti-inflammatory and antibacterial effects. Its cultivation supports both cultural heritage and sustainable practices in agriculture.