The arrival of the rains turns Chaiyaphum province in the Northeast into an amazing place to observe the exceptional beauty and natural wonder of "Siam tulips” in full bloom. Locally known as "dok krachiao,” the Siam tulip is a pinkish-purple wildflower grown in abundance at Pa Hin Ngam National Park in Thep Sathit district. The botanical name is Curcuma and its flower is butterfly-like. This plant is in the same family as ginger and galingale, which are among the most popular Thai herbs.