Introduction of Dan Zhu Ye:Lophatherum Herb or Herba Lophatheri.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Lophatherum Herb, its English name, Latin name, property and flavor, its botanical source two plant species, ①.Lophatherum gracile Brongn., ②.Lophatherum sinense Rendle., 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 Lophatherum Herb, its pharmacological actions, medicinal efficacy, and administration guide.

Herba Lophatheri(Lophatherum Herb).

growing shrubs of Lophatherum gracile Brongn with green leaves grow in a field Pin Yin Name: Dàn Zhú Yè.
 English Name: Lophatherum Herb.
 Latin Name: Herba Lophatheri.
 Property and flavor: cold, sweet, tasteless.

 Brief introduction: The herb Herba Lophatheri is the dried stem and leaf of Lophatherum gracile Brongn., used for relieving fidgetiness and thirst in cases of febrile diseases, and dysuria with painful urination, also known as a bamboo leaf. The herb is commonly known as Common Lophatherum Herb, Common Lophatherum or Dàn Zhú Yè.

 Botanical source: The herb Herba Lophatheri (Lophatherum Herb) is the dried stem and leaf of Lophatherum gracile Brongn., it is a plant of the Lophatherum. Genus, the Gramineae family (Poaceae, grass family) of the Poales order.

 Herbal classic book defined the herb Herba Lophatheri (Lophatherum Herb) as the dried stem and leaf of (1). Lophatherum gracile Brongn., or (2). Lophatherum sinense Rendle. These 2 commonly used species are introduced:

(1).Lophatherum gracile Brongn.

 many plants of Lophatherum gracile Brongn grow in a cluster Botanical description: Lophatherum gracile Brongn is commonly known as Common Lophatherum or Dan Zhu Ye. A perennial herb, the plant grows up to 40~100 cm tall. The rhizome is thick and short, firm and hard. Fibrous roots are sparse, often enlarged into fusiform tuberous roots in the part near to the top or middle. The rod is slender and fragile, more or less lignified. Leaves are alternate, broadly lanceolate, 5~20 cm long, 1.5~3.0 cm wide, the apex is acuminate or mucronate (short pointed), entire, the base is orbicular (subrotund) or cuneate and gradually narrowing to petiole or is sessile, many parallel veins, with conspicuous transverse veins, in a small long square shape, both surfaces are glabrous or have small bristles; leaf sheath edge is glabrous or has cilia; paraphyll is short and small, hard, 0.5~1 mm long, with marginal seta.

 dried green herbs of Lophatherum Herb Panicles are terminal, 10~30 cm long, few branches, sparse, oblique or stretching; spikelets are linear-lanceolate, 7~12 mm long (with short bur), 1.5~2.5 mm wide, with thick spikelet stalk, about 1 mm long; glume is oblong, has five veins, apex is obtuse, the margin is membraneous, the 1st glume is shorter than the 2nd glume; lower palea is longer than glume, lanceolate, 6~7 mm long, 3 mm wide, apex is shortly pointed, has 5~7 veins, palea is shorter than lower palea, membraneous and transparent.

 Caryopsis is fusiform (spindle-shaped), and dark brown. Its flowering period is from June to September, and the fruiting period is from August to October.

 dried herbs of Lophatherum Herb Ecological environment: The plant grows wild in forest on slopes and at dankish places. The plant is distributed in the southern area of the Yangtze River, the Yellow River area, and southwest of China.

 Growth characteristics: Lophatherum gracile prefers a shady and cool climate. The suitable cultivation area is a hillside forest and dankish place. It is appropriate to choose humus-rich sandy loam for cultivation.

 dried herb slices of Lophatherum Herb Characters of herbs: The herb stem is cylindrical, 25~30 cm long, and 1.5~2 mm in diameter; the surface is light yellowish green, has nodes, with leaf sheaths holding the nodes, and the fracture surface is hollow. The leaves are wrinkled and curled, and leaf blades are lanceolate, 5~20 cm long, and 1~3.5 cm wide; the surface is pale green (pea green) or yellow-green, with parallel veins and transverse veinlets, forming a rectangular grid shape, especially conspicuous on the lower surface. The leaf sheath is about 5 cm long, dehiscent, with vertical stripes outside, and white villous along the edge of the leaf sheath. The herb is light, and the texture of the herb is pliable and tough. The herb has a slight smell, and it tastes mild. The herb of a better grade has large leaves, green, no roots and spica.

 Pharmacological actions: ①.Antipyretic effect; ②.Diuretic effect.

 Medicinal efficacy: Clearing away heat, relieving restlessness, diuresis, indicated for the treatment of fever and polydypsia, dysphoria with smothery sensation, thirst, hot urination with drenching pain, sore of mouth and tongue, swelling and aching of gum, baby crying with fear, stranguria with turbid discharge, etc.

 Administration of Herba Lophatheri (Dàn Zhú Yè): 
Reference: Administration Guide of Herba Lophatheri (Dàn Zhú Yè)
TCM Books: ①.Internally: 6~9 grams; ②.Internally:water decoction, 3~5 qian (about 9~15 grams); ③.Internally:water decoction, 9~15 grams.
 Precautions and Adverse Reactions: the herb Herba Lophatheri should not be used during pregnancy, should be used cautiously in conditions no excessive fire, warm dampness, should not be used in conditions physical deficiency with cold.

(2).Lophatherum sinense Rendle.

 growing shrubs of Lophatherum sinense Rendle. Botanical description: Lophatherum sinense Rendle is commonly known as Lophatherum sinense, or Zhong Hua Dan Zhu Ye. The appearance and morphology of this species are similar to Lophatherum gracile Brongn. The difference is that the leaf blade is 4 cm wide. Panicle branches are shorter, 3~8 cm long; Spikelets are broadly lanceolate, 7~9 cm long, 2.5~3 mm wide; Glume is broad-ovate, has 5~7 veins; the 1st lower palea is about 6 mm long, about 5 mm wide, with seven veins, the apex has short awn and is less than 1 mm long. Its flowering period is from August to September, and the fruiting period is from September to October.

 Ecological environment: Lophatherum sinense Rendle grows on hillsides and stream sides. The plant is distributed in the lower reaches of the Yangtze River and other areas of China.



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