Noun pepperwort has 2 senses

• pepperwort(n = noun.plant) clover fern - any of several water ferns of the genus Marsilea having four leaflets; Array
is a kind of aquatic fern, water fern
is a member of genus marsilea, marsilea
has particulars: common nardoo, marsilea drummondii, nardo, nardoo, marsilea quadrifolia, water clover

• pepperwort(n = noun.plant) common garden cress, garden pepper cress, lepidium sativum, pepper grass - annual herb used as salad green and garnish; Array
has parts: garden cress
is a kind of cress, cress plant
is a member of genus lepidium, lepidium