Hratele

According to the Old English Dictionary:

an;

hratele

f. The name of some plant:--Hratele bobonica, Wrt. Voc. i. 67, 1. Hrate[le?] bobonaca, Lch. iii. 300, col. 2. [N. E. D. rattle; I. 3.] v. hrætel-wyrt. hratele