Greengrass family

Greengrass is the surname of a pure-blood wizarding family. They are related to the Malfoy family, and more distantly to the Black and the Lestrange families. The socio-economic status of the Greengrass family is unknown. However, it is most likely they are a very old and wealthy family, belonging to wizarding Britain's privileged upper class, since Draco Malfoy married Astoria Greengrass, and it would be most out-of-character for any member of the Malfoy family to make ties with and/or marry someone they deemed to be of lesser heritage.

Family Members

 * Astoria Malfoy née Greengrass — wife of Draco Malfoy, mother of Scorpius Malfoy
 * Daphne Greengrass — Astoria's older sister, she was in Harry Potter's year and Slytherin house at Hogwarts, and was one of Pansy Parkinson's gang.

Etymology

 * The surname Greengrass seems to simply come from the words green and grass, emphasising Slytherin's house colours. This would imply the Greengrass family have been traditionally sorted into Slytherin.

Notes and references
Rodzina Greengrass