
Calamus
Acorus calamus
Acoraceae

Acorus calamus
Acoraceae
Lives wild in Kazakhstan.
Introduced to Albania, Andaman Is., Austria, Baltic States, Bangladesh, Belgium, Bulgaria, Canada, and 36 more countries.
Acorus calamus (also called sweet flag, sway or muskrat root, among many other common names) is a species of flowering plant. It is a tall wetland monocot of the family Acoraceae, in the genus Acorus. Although used in traditional medicine over centuries to treat digestive disorders and pain, it has no clinical evidence of safety or efficacy and may be toxic if ingested, and so has been commercially banned for use in food in the United States.
Two aquariums from Southeast Asia: calm forest streams and peat swamps with soft, brown water, and fast mountain streams with cool, oxygen-rich water.
Light, nutrients and CO₂ in balance, low tech versus high tech, and how to read from the leaves what your plants are missing.