Commodity: Uacaria Rhynchophylla Extract English Name:Gambir Plant Latin Name:Ramulus Uncariae Cum Uncis Specification:Rhynchophylline 3% or 20:1 Collection: Gambir Plant is the dried hook-bearing stem branch of Uncaria rhynchophylla (Miq.) Jacks., Uncaria macrophylla Wall. , Uncaria hirsute Havil., Uncaria sinensis (Oliv.) Havil. or Uncaria sessilifructus Roxb. (Fam. Rubiaceae). The drug is collected in autumn and winter, removed from leaf, cut into section, and dried in the sun. Identification: Cylindrical or subsquare, 2-3 cm long, 2-5 mm in diameter. Externally reddish-brown to purplish-red with fine longitudinal striations, glabrous, or yellowish-green to greyish-brown, sometimes with white dotted lenticels, covered with yellowish-brown pubescences. Most nodes of stem branches with two opposite downward curved hooks (sterile peduncles), some only with a hook at one side and with raised scars at the other side; hooks relatively flattened or rounded, apex acute, base relatively broad; dotted scars of falling petiole and ring-shaped stipule scars visible on the branch at the hook base. Texture hard and tenacious, fracture yellowish-brown, bark fibrous, pith yellowish-white or hollowed. Odourless; taste, weak. Function: To remove heat, subdue hyperactivity of the liver, and arrest convulsions. Indications: Headache, dizziness, convulsion, eclampsia, hypertension. Storage:Preserve in a dry place.