[pep-er-gras, -grahs] 
| any pungent plant belonging to the genus Lepidium, of the mustard family, used as a potherb or salad vegetable. |
| pep·per·cress (pěp'ər-krěs') n. See peppergrass. |
| pep·per·grass (pěp'ər-grās') n. Any of several plants of the genus Lepidium, especially the North American species L. virginicum, having small white flowers and pungent foliage and seeds. Also called peppercress, pepperwort. |
ərˌgræs