Holy Grass (Hierochloe borealis), a sweet-smelling grass belonging to the tribe Phalarideæ, about a foot high, with a brownish glossy lax panicle. It is sometimes strewed on the floors of churches on festival-days, whence its name.
Holy Grass
Chambers's Encyclopaedia, Volume 5: Friday to Humanitarians, p. 751
Source scan(s): p. 0768