Introduction of Hai Zao:Seaweed or Sargassum.

TCM Herbalism:Medicinals and Classifications. ✵The TCM herbalism is also known as pharmaceutics of Traditional Chinese Medicine, or Chinese pharmaceutics, is the branch of health science dealing with the preparation, dispensing, and proper utilization of Chinese herbs. It is majorly composed of Introduction of Chinese Medicinals, Classification of Chinese Herbs, Formulas, and Patent medicines.

Classifications of Herbs:Expectorants,Herbs for Resolving Heat-Phlegm.

 TCM Herbs Icon03 Introduction: Expectorants,herbs for resolving heat-phlegm: an agent or substance herbs warm in property, used in treating disorders of heat-phlegm or phlegm-dampness.


Seaweed:growing plant Pin Yin Name: Hái Zǎo.
 English Name: Seaweed.
 Latin Name: Sargassum.
 Property and flavor: cold, bitter, salty.

 Brief introduction: The herb Sargassum is the dried thallus of seaweed, Sargassum pallidum (Turn.) C.Ag. or Sargassum fusiforme(Harv.) Setch.(family Sargassaceae), used (1).to eliminate phlegm and soften hard masses for treating goiter, scrofula, and swelling of the testis, and (2).to induce diuresis for edema. The herb is commonly known as Sargassum, Seaweed or Hái Zǎo.

 Botanical source: The herb Sargassum(Seaweed) is the dried thallus of Sargassum pallidum (Turn.) C.Ag., Sargassum fusiforme(Harv.) Setch., they are plants of the Sargassaceae family of the Moceros order.

 Sargassum pallidum Turn.C.Ag.:dried plant Common official herbal classics and other famous herbal classics defined the herb Sargassum(Seaweed) as the dried thallus of seaweed:(1). Sargassum pallidum (Turn.) C.Ag., (2). Sargassum fusiforme(Harv.) Setch. These 2 commonly used species are introduced as:

(1).Sargassum pallidum (Turn.)C.Ag.

 Botanical description: It is commonly known as Hai Hao Zi, or Big-leaf seaweed. Perennials brown algae, fleshy, yellow, 7~40 cm high. The fixator is fibrous and root-like; Spindles cylindrical, erect, 2~4 mm in diameter, branching and leaflike protuberances growing from the periphery; Branches very short; Leaflike projections clavate, 3~7 cm long, apex shield, sometimes swollen, hollow into bubbles, entire. Both balloon and reproductive rest were axillary. Gasbag spindle-shaped, 5~10 mm long; Reproductive support cylindrical or elliptic, 5~15 mm long, plexus axillary.

 Sargassum pallidum Turn.C.Ag.:drawing of seaweed Ecological environment: The plant grows on rocks under low tide and dry tide, which are often impacted by waves and water. The plant mainly distributes in coastal areas.

 Growth characteristics: The big-leaf seaweed grows on rocks in low tide shallow waters. It distributes in coastal areas.

 Seaweed:herb photo. Characters of herbs: The herb is also known as big-leaf seaweed, all the lobules of algae are wrinkled and curly, dark brown, some are covered with hoarfrost, 15~40 cm long. Principal axis is cylindrical, with short branches, leaf-shaped projections linear, long rods, slightly flat, apex sometimes swollen, hollow or shield. Gasbag grain hammer shape, pear shape or ball, fascicular. Reproductive receptacle is cylindrical or oblong. Fishy and salty.

 Pharmacological actions: ①.Cholesterol-lowering effect; ②.Blood dilatant.

 Medicinal efficacy: Resolving hard lump, dissolving phlegm, alleviate water retention, indicated for galls, scrofula, testicular swelling and pain, phlegm and retained fluid, general edema, etc.

 Administration of Sargassum(Hái Zǎo): 
Reference: Administration Guide of Sargassum(Hái Zǎo)
TCM Books: Internally:6~12 grams(CP),Internally:water decoction, 1.5~3 qian(about 4.5~9 grams), infusing in wine, or prepare to pill,powder(DCTM), Internally:water decoction, 1.5~3 qian(about 4.5~9 grams), infusing in wine, or prepare to pill,powder(CHMM).
 Precautions and Adverse Reactions:the herb Sargassum should not be combined with licorice root.

(2).Sargassum fusiforme(Harv.)Setch.

 Sargassum fusiforme Harv.Setch.:drawing of plant and herb Botanical description: It is commonly known as Yang Qi Cai, or Small-leaf seaweed. Perennial brown algae, dark brown, 30~100 cm tall. The retainer is flat disc or short conical, up to 2 cm in diameter; Spindle cylindrical, short when young, but increased year by year, on both sides of the obtuse Angle or right Angle pinnate branches and axillary branchlets, when young there are many short spines protruding; Leaf form protuberance shape, size difference is very big, lanceolate, oblanceolate, obovate and linear all have, 25 cm long, short to only 2 cm, wide one can reach 2.5 cm, have not apparent midrib shape protuberance, have apparent hairline spot, narrow one only 1 mm, without midrib shape protuberance, also do not have spot, entire or have serrate. In the axillary part of the linear foliate protuberance, most branchlets with filamentous protuberances grow out. Air sac on an ultimate branch, sessile, globose or nearly globose when mature, apex rounded or apiculate convex, surface with sparse hairline spots. Reproductive pedicels solitary or racemose arranged on reproductive branchlets, cylindrical, 3~15 mm long or longer, ca. 1 mm in diameter.

 Sargassum fusiforme Harv.Setch.:dried plant Ecological environment: The plant grows on rocks at a depth of 1~4 meters under low tide and dry tide in stone marshes. The plant mainly distributes in the Huanghai Sea and the Bohai sea coast of China.

 Characters of herbs: The herb is also known as small-leaf seaweed, there are short spiny protrusions on the main axis surface of kelp macrophylla. Branches numerous, base leaf-like protuberances lanceolate, entire or coarsely serrate, leathery, upper leaf-like protuberances narrowly lanceolate or filamentous. Balloon spherical or ovate, tip rounded or with a short point. Reproductive receptacle is cylindrical. Fishy and salty. All with color black-brown, less salt frost, tender branches without sand and stone for the best.
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  • 1.Introduction of Hai Zao:Seaweed or Sargassum.
  • 2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).

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