#leaf modification

• Ascidium — A foliar organ structurally modified into the shape of a pitcher, trumpet, or cup, characteristic of certain carnivorous plant species (such as those of the genus Nepenthes or Sarracenia), used for capturing, retaining, and digesting insects or other small organisms due to proteolytic enzymes secreted inside. In a secondary morphological sense, the term can describe any congenital leaf anomaly that produces a deep concavity similar to a chalice.