Introduction of Qian Nian Jian:Obscured Homalomena Rhizome or Rhizoma Homalomenae.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Obscured Homalomena Rhizome, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Homalomena occulta (Lour.) Schott., with a detailed introduction to the botanical features of this plant species, the growth characteristics, and ecological environment of this plant species, the features of the herb Obscured Homalomena Rhizome, its pharmacological actions, medicinal efficacy, and administration guide.

Rhizoma Homalomenae(Obscured Homalomena Rhizome).

Rhizoma Homalomenae Pin Yin Name: Qiān Nián Jiàn.
 English Name: Obscured Homalomena Rhizome.
 Latin Name: Rhizoma Homalomenae.
 Property and flavor: warm, pungent, bitter.

 Brief introduction: The herb Rhizoma Homalomenae is the dried rhizome of Homalomena occulta(Lour.) Schott(family Araceae), used to dispel wind-damp, strengthen tendons and bones, and alleviate rheumatic pain for treating rheumatoid arthritis with cold sensation and pain in the back and knees, and contracture of the lower limbs. The herb is commonly known as Rhizoma Homalomenae, Obscured Homalomena Rhizome, Qiān Nián Jiàn.

 Homalomena occulta Lour.Schott.:drawing of plant and herb Botanical source: Famous herbal classics defined the herb Rhizoma Homalomenae(Obscured Homalomena Rhizome) as the dried rhizome of (1).Homalomena occulta (Lour.) Schott. It is a plant of the Homalomena. Genus, Araceae family, Arales order. This commonly used species is introduced as:

(1).Homalomena occulta (Lour.) Schott.

 Homalomena occulta Lour.Schott.:growing plant Botanical description: It is commonly known as Qiān Nián Jiàn or Obscured Homalomena Rhizome, Rhizome of Obscured Homalomena. Herbs perennial. Rhizomes prostrate, slender, 1.5 cm thick. Root fleshy, densely covered with pale brown short tomentose, fibrous root. Usually with erect stems 30~50 cm tall. Branchial leaves are linear-lanceolate, up to 16 cm long, base 2.5 cm wide, tapering upward, acute; Petiole 20~40 cm long, lower part with 3~5 mm wide sheath; Leaf blade membranous to papery, arrow-shaped cordate to cordate, 15~30 cm long, 10~28 cm wide, apex abruptly narrow acuminate. The lateral veins are parallel and ascending obliquely. 1~3 Inflorescences, with scales and scales, raceme stalk shorter than petiole; Buddha flame bud green white, oblong to elliptic, 5~6.5 cm long, flower front curl into a hammer shape, the upper part slightly expanded into a short boat shape when holding flowers; Inflorescence 3~5 cm long; Female inflorescence 1~1.5 cm long, 4~5 mm thick; Male inflorescence 2~3 cm long, 3~4 mm thick. Ovary oblong, base one side with false stamens 1, ovary 3 locules. Berry, seed brown, oblong. Its flowering period is from July to September.

 Homalomena occulta Lour.Schott.:growing plantEcological environment: The plant grows in the dense forest of a gully, open forest, and hillside thickets at an elevation of 80~1,100 meters above sea level. The plant mainly distributed in the Zhujiang river area, Hainan, Yunnan, and other areas of China.

 Growth characteristics: The plant Homalomena occulta prefers a warm and damp climate, not resistant to cold, avoid strong light. It is advisable to choose fertile, loose sandy loam for cultivation.

 Obscured Homalomena Rhizome:herb photo Characters of herbs: The rhizome of the herb is cylindrical, slightly curved, some are slightly flat, 15~40 cm long and 0.8~2 cm in diameter. The surface is reddish-brown or yellowish-brown, coarse and rough, with many twisted longitudinal grooves, round root marks and yellowish-white needle-like fiber bundles. The texture of the herb is hard and brittle, easy to break, the fracture surface is reddish brown, resin-like, with many fiber bundles exposed and round shiny oil spots. The herb has an aromatic odor, it tastes pungent and slightly bitter.

 Pharmacological actions: ①.inhibit primary inflammation and secondary inflammation; ②.inhibitory effect on the ear swelling induced by xylene in mice, which indicates that it had an anti-acute inflammation effect; ③.anti-rheumatoid arthritis; ④.analgesic effect.

 Medicinal efficacy: Expelling wind-damp, strengthen muscles and bones, relax tendons and activate collaterals, relieve pain, reduce swelling, promote blood circulation and relieve pain. It is indicated for the wind-cold-wetness type of arthralgia, rheumatic arthralgia pain, cold and pain of waist and knee, soreness of limb and joints, weakness and flaccidity of muscles and bones, constriction and numbness of lower limbs, traumatic injury of falls, gastralgia(stomach pain), carbuncle-abscess and sore swelling.

 Administration of Rhizoma Homalomenae(Qiān Nián Jiàn): 
Reference: Administration Guide of Rhizoma Homalomenae(Qiān Nián Jiàn)
TCM Books: ①.Internally:4.5~9 grams;②.Internally:water decoction,1.5~3 qian(about 4.5~9 grams), or infusing in wine. Externally:grinded into fine powder and apply stick;③.Internally:water decoction,9~15 grams, or infusing in wine. Externally:proper amount, grinded into fine powder, apply stick.
 Contraindications,Precautions and Adverse Reactions:the herb Rhizoma Homalomenae should not be combined with radish's seed.

Dispelling Wind-Damp Herbs.

 Introduction: Dispelling Wind-Damp Herbs: an agent or substance herbs that dispels wind and damp, mainly for relieving rheumatism and related conditions.
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