tropical plants grow on the steep slopes of the cliffs.

tianxingqiao agriculture vegetation tropical prickly plants slopes cliffs bushes cracks scenic forest steep ferns cacti rocks china plant shrub grow pear blue tree rock leaf sky cliff rocky sheer cliffs slope steep tropic cactus fern opuntia prickly pear cactaceae succulent plant cacti tropical flora ecology growth bush botany crack stone mountainside natural landscape sky mountains exotic uncultivated lush greenery mountain ecological park rock guizhou area tianxingqiao tianxing reserve vegetation picturesque china nature nature green