Here's a surprise newcomer which wasn't to be seen last year: St. John's Wort. You may know it as a treatment for depression but in ancient Britain, it was known thus:
'St. John's Wort has been dedicated to John the Baptist. The reddish sap was said to be the blood of John. The superstitious have credited the plant with remarkable mystic qualities. It is the practice to wear the plant as an amulet in order to ward off witches and evil spirits. The plant is also known as Fuga daemonum- Dare devil.' British Wild Flowers, Charles A. Hall, 1937.
I also came across a sleeping giant on the way back from the woods today.