Lewis & Short

alum (hal-), n., or alus, i, f., a plant.

  1. I. Comfrey: Symphytum officinale, Linn.; Plin. 27, 6, 24, § 41; 26, 7, 26, § 42; App. Herb. 59.
  2. II. A kind of garlic, Plin. 19, 6, 34, § 116.