Chinese name: Zhangye Laoyazui

Latin name: Thunbergia laurifolia

Kingdom: Plant Kingdom

Door: Angiosperm

Subclass: Chrysanthemum subclass

Genus: Mountain petunia

Distribution area: India, Malaysia

1. Camphor Morphology of the old crow's mouth

The stems and leaves of the old crow's mouth are smooth and glabrous; the leaves are opposite, long ovate, the apex is acute, the margin is entire or angularly lobed; the spring to autumn blooms, the corolla is blue-purple , the throat is pale yellow, the flower shape is similar to the big flower crow's mouth, but the inflorescence is shorter. Winding woody vine, sturdy stem, more than 7 meters long, single leaf opposite, broadly ovate, with 3-5 palmate veins, leaf margin notched or lobed, rough on both sides, hairy, petioles without wings, flowers Large, axillary, several in drooping racemes, with 2 leaf-like bracts, initially connate, the rear side dehiscences into flame-like bracts, with microhairs, calyx degenerate, corolla funnel-shaped, initially blue, later The color is gradually lighter, nearly white at the end of the flower.

2. The use of the old crow's mouth of the camphor leaf

The old crow's mouth of the camphor leaf is native to India and Malaysia, and it likes high temperature and humidity. Crow's Mouth is profusely blooming, and it is a string of drooping flowers. It has a long flowering period and grows robustly. It is a good greening material for large trellises and fences. Its root bark, stem and leaves are used as medicine. Pick roots in summer and autumn, scrape off the epidermis, remove the wood core, use fresh or sun-dried; meanwhile, collect the remaining stems and leaves and sun-dried. The nature and flavor are sweet and smooth. Function Indications: Detumescence and toxin removal, pus removal and muscle regeneration, pain relief. Root bark: used for bruises, fractures. Stems and leaves: Snake bites, boils. Leaf: cure stomach pain. Usage and dosage: For external use, appropriate amount, smash and apply to the affected area.

3. Planting of old crow's mouth with camphor leaves

The old crow's mouth with camphor leaves can be used by rhizome cuttings or division method, spring to summer is the right time. Cultivation is best in fertile loam or sandy loam rich in humus, with good ventilation, sunshine and drainage. Cultivation soil is often kept moist or close to water sources. The planting spacing should be large when planting camphor leaf and Laoyazui nursery to avoid intertwining the plants; in garden applications, the plants are often too strong and prone to collapse, so they should be pruned after flowering in autumn. In early spring, a small amount of fertilizer can be applied to promote the increase of flower volume. Cuttings in spring are easy to take root, and can be colonized the following year after transplanting in the rainy season.

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