As follows:
Tobacco (tobacco? L), belonging to the genus Panicum, Solanaceae, with oblong, lanceolate, oblong or oval leaves, tapering at the top, ear-shaped semi-holding stems at the base, and inconspicuous or winged petioles; Inflorescence conical, calyx tubular or tubular bell-shaped, lobes triangular-lanceolate, corolla funnel-shaped, light yellow, light green, red or pink.
Yellow at the bottom; Capsule ovoid or elliptic, nearly as long as persistent calyx; Seeds round or broadly oblong, brown; The flowering and fruiting period is summer and autumn. Tobacco is native to South America and is widely cultivated in the northern and southern provinces of China. Tobacco likes warm and sunny environment, not cold-resistant, more heat-resistant, and likes fertile, deep and well-drained soil. Tobacco is mainly sown by dividing plants.
According to "Materia Medica Harms Benefits", tobacco is pungent, warm in nature, enters the lungs, plays a role in exorcising evil spirits, and treats arthralgia due to wind-cold-dampness, qi stagnation and phlegm elimination. The smog in Shan Lan is a product of dispersion, and the water in the pipe can detoxify. Tobacco has the functions of killing crop pests, stomach poisoning, contact killing and fumigation, and is used to control many crop pests such as rice lice, rice aphids, thrips, flies and red mantis spiders.
Tobacco is very harmful to people, causing cancer, cardiovascular diseases and respiratory diseases. Native Americans had been planting and using tobacco for thousands of years before European colonists arrived in America. According to textual research, the earliest evidence of human use of tobacco can be found in the relief of a temple in Harpas, Mexico in 432 AD. This relief shows the scene of Maya blowing smoke with a pipe during sacrifice.
In addition, archaeologists also found tobacco seeds 3,500 years ago in South America, which proved that humans had planted tobacco at that time. According to many documents, Native Americans regard tobacco as a panacea, which can be used to treat various diseases, such as colds, headaches, toothaches, wounds, burns, abscesses and ulcers, as well as anesthesia, tooth whitening and anti-fatigue.
Because it can cure terminal diseases, it is also called "holy medicine". At that time, the way to use tobacco was to breathe the smell of fresh tobacco, smoke it through the nostrils after lighting it, grind dry tobacco and apply it to the affected area alone or mixed with salt and lime, chew tobacco and rub the inside of the mouth, and make it into a torch for smoking and baking.
In view of the special contribution of tobacco to Indian health, they often hang tobacco on ships near the island to show their respect, and smoke as part of the solemn ceremony during worship and negotiation.