Eucalyptus tenuifolia

Fine leaf

The picture is from the Internet

(Lu Chuan Ben Cao)

[source] it is the leaf of Eucalyptus tenuifolia.

[plant morphology] Eucalyptus tenuifolia, also known as brown Eucalyptus.

Arbor, 10-50m high, bark smooth, pale white or reddish, flaking in thin slices. Abnormal leaves round to broad lanceolate, 10 cm wide, sometimes oblique; normal leaves lanceolate, more than 15 cm long, falcate and acuminate, lateral veins mostly, oblique slightly thick, veins slightly away from the leaf margin. Umbelliform inflorescence axillary or lateral, composed of 4-8 flowers; flower diameter 1.5-2 cm; calyx tube gyriform, diameter 4-6 mm; cap body long conical, acuminate, short pointed or blunt head, length 7-12 mm; stamens many, length 6-12 mm, anthers small, ovate. Capsule obovate or subglobose, 6-8 mm in diameter, margin broad and convex, petal protruding out of margin, short pointed. The flowering period is winter and spring.

It is cultivated in Guangdong, Guangxi and Fujian.

[collection] all year round.

[chemical constituents] the volatile oil in leaves and twigs is 0.5-0.9%, and the main components are 1,8-cineole, p-cymene, pinene, Oenanthe javanica, and cumaldehydes.

[pharmacological effect] the double dilution method in vitro showed that 50% Eucalyptus tenuifolia decoction had strong antibacterial effect on Staphylococcus aureus (1:1280), Diplococcus pneumoniae (1:10240) and Streptococcus B (1:2560), weak antibacterial effect on Proteus and Pseudomonas aeruginosa, and no antibacterial effect on Escherichia coli.

Lu Chuan's materia medica: "hard work, flat.". "

[functions and indications] Lu Chuan Ben Cao: "it can treat cold, cough, flatulence, abdominal pain, diarrhea, dysentery, traumatic injury; it can also be used as washing disinfectant for external treatment of toxic sores and ulcers. "

[usage and dosage] oral: decoction, 3-5 yuan. External use: wash with boiling water.

The above is the introduction of Eucalyptus tenuifolia. Please pay attention to more pictures of traditional Chinese medicine.