There's a black and white yak with a fluffy tail standing contemplatively under a four-metre-high rhododendron tree.
The tree is covered in bright red clusters of waxy blooms; glowing candelabra against deep green leaves.
If this wasn't Bhutan I might have suspected a tourism promotion board setpiece. But as it is Bhutan I know this is reality.
A few more bends of the road (and there's a bend on average every nine seconds on Bhutan's roads) up to the 3350m Yothang Pass) there's another rhododendron, this one five or six metres, also glowing with red flowers and providing a stunning backdrop against a giant magnolia.
White petals hang suspended like huge floppy snowflakes. At the feet of the trees the grass is splashed white and red with fallen flowers, which lie amongst drifts of mauve primula.