dried lotus seed, also known as lotus plumule, is the embryonic seed of the lotus plant (Nelumbo nucifera Gaertn.),
a common aquatic plant in China, India, and other parts of Southeast Asia. In traditional Chinese medicine (TCM), lotus seedheart is valued for its medicinal properties and is used to treat a variety of health conditions.
The lotus seedheart is recognized for its sweet and slightly bitter taste, and it is associated with the heart, liver, and kidney meridians in TCM theory. It is commonly used to calm the mind, promote sleep, and reduce anxiety. Traditional applications also include its use in addressing restlessness, insomnia, dreams caused by heart heat, and blood pressure issues related to hyperactivity of the heart's fire.
Phytochemical studies have shown that lotus seedheart contains alkaloids, such as liensinine and isoliensinine, which are believed to contribute to its pharmacological effects. These compounds have demonstrated sedative, antihypertensive, and anti-arrhythmic activities in scientific research.
Modern clinical applications of lotus seedheart extend to using it as a natural remedy for high blood pressure, insomnia, and nervousness. It is also sometimes used in combination with other herbs to enhance its therapeutic effects.