Astringent traditional material

Shi Lian Zi

石莲子 (shí lián zǐ)Nelumbo nucifera Gaertn. — A Comprehensive Traditional Chinese Medicine Educational Guide

Last updated: August 21, 2026·Educational, source-led update·~8 min read

Shi Lian Zi medicinal material. Illustrative herb reference image.

Key Takeaways

  • Shi Lian Zi is documented here as mature lotus fruit / seed material material associated with Nelumbo nucifera Gaertn..
  • This page separates traditional context from modern evidence; direct human evidence is limited unless a source says otherwise.
  • Correct botanical identity, processing, and supplier traceability are essential.
  • Consult a qualified healthcare professional before using any herbal product.

Important Safety Notice

This page is for educational purposes only. It does not provide dosage recommendations, treatment plans, or individualized herbal advice. Use only a correctly identified commercial material. Consult a clinician or qualified practitioner before use if pregnant, breastfeeding, managing a chronic condition, or using medicines.

Quick Facts

Material
Mature lotus fruit / seed material
Botanical source
Nelumbo nucifera Gaertn.
Family
Nelumbonaceae
Chinese name
石莲子 (shí lián zǐ)
Traditional nature
Traditional-use reference
Traditional channels
Traditional-use reference
Key constituents
Starch, polysaccharides and phenolic constituents
Direct human evidence
Limited; verify preparation-specific evidence
Use With Caution

What Is Shi Lian Zi

Shi Lian Zi refers to mature, aged lotus fruit or seed material derived from Nelumbo nucifera. It is distinct from the commonly sold fresh lotus seed and should be identified by a qualified supplier.

Shi Lian Zi is commonly described as an aged lotus seed: the mature fruit falls after weathering and the hard grey-black seed coat is retained. This distinguishes it from peeled culinary lotus seed. A supplier should identify the material as Nelumbo nucifera seed and document processing.

Quality and identity: Herbal names, plant parts, and processing methods can differ across regions. A reliable product should state the accepted source, medicinal part, processing method where relevant, and batch-quality information. A page image aids recognition but cannot authenticate a material.

Traditional Context

In traditional literature, aged lotus material is discussed in astringent-use contexts. These are TCM pattern concepts, not modern disease claims.

Classical and regional references discuss this material in an astringent-use context. That traditional classification does not establish a modern indication and must not be used to delay evaluation of persistent digestive or urinary symptoms.

TCM classifications describe patterns and historical materia medica relationships. They should not be translated directly into claims to diagnose, prevent, or treat a modern medical condition.

Constituents and Evidence

Reported constituents: Starch, polysaccharides and phenolic constituents.

Lotus seed chemistry has been studied in laboratory settings, but evidence for a specific Shi Lian Zi preparation in people is limited. Product form and processing can materially change composition.

Research on lotus includes seeds, embryos, leaves and rhizomes; these parts have different chemistry. Findings from lotus polysaccharides or lotus-seed extracts cannot be assigned automatically to aged, coated Shi Lian Zi. Preparation-specific human data are limited.

Results from cell, animal, or chemical studies are preliminary. They do not establish effectiveness or safety for people, nor do they prove that a commercial product has the same composition.

Use, Quality, and Safety

Use only a correctly identified commercial material. Consult a clinician or qualified practitioner before use if pregnant, breastfeeding, managing a chronic condition, or using medicines.

Do not substitute fresh or food-grade lotus seed for a medicinally identified material. Seek clinical advice before use in pregnancy, breastfeeding, chronic illness, or alongside medicines; seek urgent care for dehydration, bleeding, fever, or severe abdominal pain.

Stop using a product and seek medical advice if an allergic reaction or concerning symptom occurs. For persistent, severe, or rapidly worsening symptoms, obtain appropriate medical evaluation rather than delaying care with self-treatment.

Frequently Asked Questions

What is Shi Lian Zi?
Shi Lian Zi refers to mature, aged lotus fruit or seed material derived from Nelumbo nucifera. It is distinct from the commonly sold fresh lotus seed and should be identified by a qualified supplier.
How is Shi Lian Zi understood in TCM?
In traditional literature, aged lotus material is discussed in astringent-use contexts. These are TCM pattern concepts, not modern disease claims.
What does modern research say about Shi Lian Zi?
Lotus seed chemistry has been studied in laboratory settings, but evidence for a specific Shi Lian Zi preparation in people is limited. Product form and processing can materially change composition.
What safety precautions apply to Shi Lian Zi?
Use only a correctly identified commercial material. Consult a clinician or qualified practitioner before use if pregnant, breastfeeding, managing a chronic condition, or using medicines.

Related Knowledge

Sources Used on This Page

  1. 1. TCMIO content system

    Chinese materia medica references and botanical records for Nelumbo nucifera.

  2. 2. Chinese Pharmacopeia Commission / regional standard bodies

    Pharmacopoeial and regional standards should be consulted for accepted source, identification, processing, and quality requirements.

  3. 3. Botanical reference databases

    Taxonomic reference for Nelumbo nucifera Gaertn..

Medical Disclaimer: The information on TCMIO is provided for educational purposes only. It is not intended as medical advice, diagnosis, or treatment.

Always consult a qualified healthcare professional before using any herbal products, starting any new treatment, or making changes to your existing healthcare regimen. Do not stop or modify any prescribed treatment without consulting your healthcare provider.

If you are experiencing severe or urgent symptoms, seek immediate medical attention by calling emergency services or visiting the nearest emergency department.

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