Bees gather nectar on cole flowers in Luoping County, southwest China's Yunan Province, Feb. 23, 2012. [Xinhua]

Photo taken on Feb. 23, 2012 shows the scene of cole flower fields in Luoping County, southwest China's Yunnan Province. [Xinhua]

Photo taken on Feb. 23, 2012 shows the scene of cole flower fields in Luoping County, southwest China's Yunnan Province. [Xinhua]

A tourist amuses herself in the field of cole flowers in Luoping County, southwest China's Yunnan Province, Feb. 23, 2012. [Xinhua]

Photo taken on Feb. 23, 2012 shows the scene of cole flower fields in Luoping County, southwest China's Yunnan Province. [Xinhua]