Introduction of Bai Hua She She Cao:Oldenlandia or Herba Oldenlandiae.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Oldenlandia, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Hedyotis diffusa Willd., 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 Oldenlandia, its pharmacological actions, medicinal efficacy, and administration guide.

Herba Oldenlandiae(Oldenlandia).

Herba Oldenlandiae:herb photo Pin Yin Name: Bái Huā Shé Shé Cǎo.
 English Name: Oldenlandia.
 Latin Name: Herba Oldenlandiae.
 Property and flavor: cool, bitter, sweet.

 Brief introduction: The herb Herba Oldenlandiae is the dried entire plant of Oldenlandia diffusa(Willd.) Roxb., Oldenlandia corymbosa L. and other related species(family Rubiaceae), used to clear heat, counteract toxins, remove damp, and relieve stranguria for the treatment of boils, sores, abscesses, venomous snake-bite, and heat stranguria. The herb is commonly known as Herba Oldenlandiae, Oldenlandia, Bái Huā Shé Shé Cǎo.

 Botanical source: Common herbal classics and official herbal classics defined the herb Herba Oldenlandiae(Oldenlandia) as the dried entire plant of (1).Hedyotis diffusa Willd. It is a plant of the Hedyotis L. Genus, Rubiaceae family, Rubiales order plant. This commonly used species is introduced as:

(1).Hedyotis diffusa Willd.

 Hedyotis diffusa Willd.:flowering plant Botanical description: It is commonly known as Oldenlandia diffusa(Willd.) Roxb., or Bái Huā Shé Shé Cǎo(literally it means White Snake Tongue Grass). Herbs spreading throughout life, 15~50 cm tall. Roots slender, branched, white. Stem slightly square or flat cylindrical, smooth glabrous, much-branched from base. Leaves opposite; Sessile; Leaf blade linear to linear-lanceolate, 1~3.5 cm long, 1~3 mm wide, apex acute, smooth above, sometimes slightly rough below, lateral veins not apparent. Stipules membranous, base connate into a sheath, 1~2 mm long, apex apical. Flowers solitary or paired in leaf axils, often with short thick pedicels, rarely sessile; Calyx simple spherical, 4-lobed, lobed oblong-lanceolate, 1.5 mm long, margin eyelash; Corolla white, funnelform, 3.5~4 mm long, apex 4-lobed, lobes ovate-oblong, ca. 2 mm long, bald; 4 stamens, inserted in the throat of the corolla, alternate with corolla lobes, filaments flattened, anthers ovate, dorsiparous, 2-locule, longitudinally cleft; Ovary inferior, 2 cells. Stigma 2 lobed hemispherical. Capsule oblate, 2~2.5 mm in diameter, loculicidal, calyx persistent. Seed brownish yellow, small, and 3-edged. Its flowering period is from July to September, fruiting from August to October.

 Hedyotis diffusa Willd.:flowers Ecological environment: The plant grows in wet fields, ditches, roadsides, and grasslands. Resource distribution: The plant mainly distributes in the southeast to the southwest areas of China.

 Growth characteristics: The plant Hedyotis diffusa Willd prefers to warm and humid environment, not resistant to drought and waterlogging, the soil requirements are not strict, but it grows better in fertile sandy loam or humus loam.

 Oldenlandia herb:herb photo Characters of herbs: The whole herb twisted into a ball, gray green to gray brown. The main root is thin and long, about 2 mm thick, and the fibrous root is slender and thin, light grayish brown. The stem is thin, curly, brittle and easily broken, and the central pith is white. Leaves are wrinkled, broken and easy to fall off; Stipules are 1~2 mm long. Flowers and fruits are solitary or paired in leaf axils, and flowers often have short and slightly thick pedicels. The fruit is oblate, 2~2.5 mm in diameter, dehiscent at the back of the chamber, 4-lobed at the top of the persistent calyx, and there are short prickly hairs at the edge. The herb has a slight odor, it tastes light.

 Pharmacological actions: ①.anti-tumor effect, the antibacterial effect is not significant; ②.weak effect on staphylococcus aureus and dysentery bacillus, high concentration decoction of the herb can inhibit Pseudomonas aeruginosa, typhoid bacillus and proteus; ③.enhance the phagocytosis of white blood cells; ④.anti-inflammatory effect.

 Medicinal efficacy: Clear heat and detoxification, remove dampness through diuresis, prompt diuresis and detumescence(reduce swelling), activate blood circulation and stanch pain. It is indicated for periappendicular abscess(appendicitis), lung heat and asthma cough, tonsillitis, pharyngitis, sore throat and swelling pain, dampness-heat jaundice, hepatitis, dysuria(difficulty in micturition), urinary tract infection, pyretic stranguria and pain, edema, dysentery, pelvic inflammation, appendagitis, carbuncle and ulcer, malignant boils, venomous snake bite, tumor, it can also be used for cancer of digestive tract.

 Administration of Herba Oldenlandiae(Bái Huā Shé Shé Cǎo): 
Reference: Administration Guide of Herba Oldenlandiae(Bái Huā Shé Shé Cǎo)
TCM Books: ①.Internally:0.5~2 liang(about 15~60 grams),water decoction.Externally:proper amount,mashed and apply stick at affected area;②.Internally:water decoction, 1~2 liang(about 30~60 grams),or extract juice.Externally:mashed and apply stick;③.Internally:water decoction, 15~30 grams, big dosage could be 60 grams,or extract juice.Externally:mashed and apply stick.
 Contraindications,Precautions and Adverse Reactions: the herb Herba Oldenlandiae should be used cautiously during pregnancy.

Herbs Clearing Heat and Counteracting Toxins.

 Introduction:Herbs Clearing Heat and Counteracting Toxins:an agent or substance herbs that counteracts heat toxins or fire toxins, mainly indicated in the treatment of boils, sores, abscess, erysipelas, epidemic infectious diseases, mumps, dysentery, insect or snake bite, and burns.
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