Compendium of Materia Medica

Serial number 322?

Drum Flower original: "鼓子花"

A traditional Chinese woodblock botanical illustration of a bindweed plant (Calystegia species). The image shows a slender, twining vine with characteristic sagittate (arrow-shaped) or cordate leaves. Three floral stages are depicted: a fully open, trumpet-shaped blossom at the top; a central, more complex flower appearing almost double-petaled or ruffled; and a closed bud on the right. The drawing uses fine black ink lines on a white background, typical of Ming or Qing dynasty scientific texts.