Introduction of Hai Zao:Seaweed or Sargassum.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Seaweed, its English name, Latin name, property and flavor, its botanical source two plant species, ①.Sargassum pallidum (Turn.) C.Ag., ②.Sargassum fusiforme(Harv.) Setch., with a detailed introduction to the botanical features of these two plant species, the growth characteristics, and ecological environment of these two plant species, the features of the herb Seaweed, its pharmacological actions, medicinal efficacy, and administration guide.

Sargassum(Seaweed).

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., 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 Herbal classic book 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:

(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 are cylindrical, upright, 2~4 mm in diameter, branching and leaflike protuberances growing from the periphery; Branches are very short; Leaflike projections clavate, 3~7 cm long, apex shield, sometimes swollen, hollow into bubbles, entire. Both balloon and reproductive rest are 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 is mainly distributed in coastal areas.

 Growth characteristics: The big-leaf seaweed grows on rocks in low tide shallow waters. It is distributed 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, and some are covered with white hoarfrost, with a length of 30~60 cm. The trunk is cylindrical, with conical protrusions, the main branches grow on both sides of the main trunk, and the lateral branches grow in the axils of the main branches, with short spikes. The primary leaves are lanceolate or obovate, 5~7 cm long and 1 cm wide, whole edge or coarsely serrate; The secondary leaves are strip-shaped or lanceolate, and there are branchlets with strip-shaped leaves in the axils of leaves. The airbags are black-brown, spherical or oval, some have petiole, the top is blunt and round, and some have short tips. The texture of the herb is fragile, soft when it is moist; The herb turns swelling after water immersion, fleshy, sticky and slippery. The herb has a fishy smell and tastes slightly salty. The herb of better grade is dark brown, less salt bloom, tender branches and no gravel.

 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: ①.Internally:6~12 grams; ②.Internally:water decoction, 1.5~3 qian(about 4.5~9 grams), infusing in wine, or prepare to pill,powder; ③.Internally:water decoction, 1.5~3 qian(about 4.5~9 grams), infusing in wine, or prepare to pill,powder.
 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, grows up to 2 cm in diameter; Spindle is 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, 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 is mainly distributed in the Huanghai Sea and the Bohai sea coast of China.

 Characters of herbs: The herb is also known as small-leaf seaweed, the lobules of seaweed are all shrunk and curled, dark brown, some are covered with white hoarfrost, 15~40 cm long. The main shaft is cylindrical, with short branches, and the leaf-shaped protrusion is linear, long-rod-shaped, slightly flat, and the apex is sometimes expanded, hollow or shield-shaped. The airbags are hammer-shaped, pear-shaped or spherical, clustered. The genital receptacle is cylindrical or oblong. The herb has a fishy smell and tastes salty. The herb of better grade is dark brown, less salt bloom, tender branches and no gravel.
 
Article Links.

 
  

 

 QR codeURL QR code:
 URL QR-code 

 
References:
  • 1.Introduction of Hai Zao:Seaweed or Sargassum.

 Last edit and latest revision date:
   cool hit counter