Termite mushrooms and other rare mushroom varieties, such as green lim mushrooms and Phu Linh Thien mushrooms, grow naturally in Vietnam and are highly valued for their rarity and medicinal properties. These mushrooms are found in specific environments and only available in large numbers during certain seasons. Due to their scarcity, they are sold at high prices, with green lim mushrooms costing between 500,000 VND and 6 million VND per kilogram and termite mushrooms fetching up to 1 million VND per kilogram. The rarity and demand for these mushrooms make them a luxury item preferred by the wealthy in Vietnam.