The Water Pennywort (Hydrocotyle vulgaris or Hydrocotyle verticillata), also known simply as Pennywort or Dollar Weed, is an enchanting semi-aquatic perennial belonging to the Araliaceae (Ivy) family. Indigenous to wetlands, marshes, and slow-moving water bodies, this plant is celebrated for its whimsical, umbrella-like appearance and its incredible biological versatility.