Oyster Plant is a common name used for various flowering plants, including:

• Tragopogon porrifolius (also called Purple Salsify)
• Mertensia
  Mertensia
  Mertensia is a genus of about 40 species of perennial herbaceous plants with bell-shaped blue flowers opening from pink-tinged buds. This is one of several plants commonly called bluebell.The genus is named after the German botanist Franz Carl Mertens....
  
   maritima
• Tradescantia discolor Synonyms: Tradescantia spathacea, Rhoeo spathacea, Rhoeo discolor.

Family: Commelinaceae Common names: Oyster Herb, Oyster Plant, Daun Kepah, Nanas Kerang, Boatlily (Cây Lẻ Bạn, Lảo Bạn, Sò Huyết), Moses in a basket, Cradle Lily, Moses in His Cradle, Moses on a Raft, Moses in the Bulrushes, Men in a Boat, Moses-in-Cradle(Chinese): 蚌花