Common Water Clover
Marsilea quadrifolia
Marsileaceae
Marsilea quadrifolia
Marsileaceae
Lives wild in Austria, Bulgaria, China, China Southeast, Czechoslovakia, France, Hungary, Iran, and 14 more countries.
Introduced to Canada, Cuba, and United States.
Marsilea quadrifolia is a herbaceous plant found naturally in central and southern Europe, Caucasia, western Siberia, Afghanistan, south-west India, China, Japan, and Vietnam, though it is considered a weed in some parts of the United States, where it has been well established in the northeast for over 100 years. Its common names include four leaf clover and European waterclover (USA), even though it is not a species of clover.
Two aquariums from Southeast Asia: calm forest streams and peat swamps with soft, brown water, and fast mountain streams with cool, oxygen-rich water.
A coldwater aquarium with European fish and plants, without a heater. The water follows the seasons, and summer heat is the biggest problem.
Light, nutrients and CO₂ in balance, low tech versus high tech, and how to read from the leaves what your plants are missing.