Fig 91. [Apetalous Pepper-Grass. Lepidium apetalum] Willd.

Apetalous Pepper-Grass. Lepidium apetalum Willd. Petals usually wanting, sometimes 2 and minute; pods flat, nearly circular; seeds reddish yellow, flattened, ovate, 1.5–1.8 mm. long, or more exactly, nearly straight on one side and roundish on the other. Mucilaginous when wet. Cotyledons incumbent. When well developed in open places it becomes a tumble weed. Apparently naturalized from Europe.


Fig 92. [Field Pepper-Grass or Cow Cress. Lepidium campestre] (L.) R. Br.

Field Pepper-Grass or Cow Cress. Lepidium campestre (L.) R. Br. Petals white; pods flat, nearly circular; seeds dull, dark brown, obovoid, with base acute, more or less flattened on three sides, 2–2.5 mm. long. Mucilaginous when wet. Cotyledons incumbent. Naturalized from Europe.


Fig 93. [Hoary Cress. Lepidium Draba] L.