peppergrass

noun

1. (countable, uncountable)Any 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.”

   “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.”

2. (countable, uncountable)The pillwort, or European pillwort (Pilularia globulifera).