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Of the Arum family, the sweet flag or Acorus calamus.

A. Calamus

Of the Arum family, the sweet flag or Acorus calamus.

Two plants of the Arum family: left, dragon arum (Arisaema dracontium); right, Jack-in-the-pulpit (Arisaema triphyllum.

A. Dracontium and A. Triphyllum

Two plants of the Arum family: left, dragon arum (Arisaema dracontium); right, Jack-in-the-pulpit (Arisaema…

Two plants of the Arum family: left, arrow arum (Peltandra virginica); right, water arum (Calla palustris).

P. Virginica and C. Palustris

Two plants of the Arum family: left, arrow arum (Peltandra virginica); right, water arum (Calla palustris).

Of the Arum family, the skunk cabbage or Symplocarpus foetidus.

S. Foetidus

Of the Arum family, the skunk cabbage or Symplocarpus foetidus.