Herba Sacra
.The “divine weed,” vervain, said by the old Romans to cure the bites of all rabid animals, to arrest the progress of venom, to cure the plague, to avert sorcery and witchcraft, to reconcile enemies, etc. So highly esteemed was it that feasts called Verbenālia were annually held in its honour. Heralds wore a wreath of vervain when they declared war; and the Druids held vervain in similar veneration.
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“Lift your boughs of vervain blue,
Dipt in cold September dew;
And dash the moisture, chaste and clear,
Oʹer the ground, and through the air.
Now the place is purged and pure.”
