Cicely Mary Barker's White Bryony Flower Fairy

Have you seen at Autumn-time
  Fairy-folk adorning
All the hedge with necklaces,
  Early in the morning?
Green beads and red beads
  Threaded on a vine:
Is there any handiwork
  Prettier than mine?
 

The Bryony has other names White Vine, Wild Vine, and Red-Berried Bryony. It has tendrils to climb with, which Black Bryony has not, and it's leaves and berries are quite different. They say its root is white, as the other's is black.