You are asking what does thatch grass look like? The plant is 20-80 centimeters tall, with a white root-strong stem, bearing scales at the nodes and pointed at the apex. According to the query quick to understand wikipedia, thatched root is also known as thatched grass, white thatched grass, white thatched root, for the grass family thatched root perennial herbaceous plants. Plant height 20-80 centimeters. Root stout stem white, horizontal walk in the ground, dense, node born with scales, the apex pointed with a sweet flavor. Thatch is born in the plains streamside, bankside moist grass, the type specimen was taken from southern India.