(1):

(n.) A fleshy, suffrutescent, umbelliferous European plant (Crithmum maritimum). It grows among rocks and on cliffs along the seacoast, and is used for pickles.

(2):

(n.) A seashore shrub (Borrichia arborescens) of the West Indies.

(3):

(n.) The species of glasswort (Salicornia herbacea); - called in England marsh samphire.