Rhododendrons blossom in a pine forest near Oupu Township of Huma County, northeast China's Heilongjiang Province, April 29, 2014. (Xinhua/Zhou Changping) 

Two tourists walks in a pine forest with blossoming rhododendrons near Oupu Township of Huma County, northeast China's Heilongjiang Province, April 29, 2014. (Xinhua/Zhou Changping)

Rhododendrons blossom in a pine forest near Oupu Township of Huma County, northeast China's Heilongjiang Province, April 29, 2014. (Xinhua/Zhou Changping)

Rhododendrons blossom in a pine forest near Oupu Township of Huma County, northeast China's Heilongjiang Province, April 29, 2014. (Xinhua/Zhou Changping)

Rhododendrons blossom in a pine forest near Oupu Township of Huma County, northeast China's Heilongjiang Province, April 29, 2014. (Xinhua/Zhou Changping)

Rhododendrons blossom in a pine forest near Oupu Township of Huma County, northeast China's Heilongjiang Province, April 29, 2014. (Xinhua/Zhou Changping)