peppergrass

plural peppergrasses

1. countableuncountableAny of the pungent herbs of the cruciferous genus Lepidium, especially the garden peppergrass, or garden cress, Lepidium sativum

   Some of the weeds that cause an undesirable flavor in milk are: onion, tarweed, scaleweed, garlic, mustard, pepper grass.

   1944, Oregon. Agricultural experiment station, Circular of Information - Issues 323-395, page 3

   1 more example

   To this group belong feeds such as: Silage, alfalfa hay, turnips, kale, apples, potatoes, beet pulp, beet tops, rape, cabbage; and also weeds such as garlic, scaleweed, dog-fennel, tarweed, peppergrass, wild mustard, and others.

   1951, Practical Butter Manufacture, a Manual for Buttermakers, page 25

   Synonyms: pepperwort, peppercress

2. countableuncountableThe pillwort, or European pillwort (Pilularia globulifera).