Xingyi rapeseed flowers, an incomparable fragrance

Guizhou Xingyi, many people don't know it, but they know Wanjia Forest. This place, located at the junction of three provinces of Yunnan, Guizhou and Guangxi, with a population of less than 1 million, has refreshed my understanding of small cities again. The typical representative of karst landform, Wanjia Forest, is located in several Buyi villages in the mountain pit. There are Xu Xiake's poems "There are so many peaks in the world, but only here the peaks become forests", and the beautiful scenery is well-regulated and clean. The village houses and homestays are very in line with the petty bourgeoisie's pursuit of opening the door to see the mountains and water, and the hardware is not much different from the enjoyment of the city. What's more surprising is that the rapeseed flowers here can be described as fragrant, and they come on the road, making people can't help but take a deep breath, which is completely different from the taste of rapeseed flowers I knew before. The doubt was later solved by a Didi driver. He said that Xingyi's rapeseed flowers are traditional flower species, fragrant and oily, different from many places' rapeseed flowers. Because of the pursuit of yield, the flower species have been transformed, and the quality is completely different. I wonder if this statement is scientific?