Bignonia suaveolens. The Indian species of bignonia. These small trees have trumpet-shaped flowers and are common throughout India.

Bignonia suaveolens. The Indian species of bignonia. They have trumpet-shaped flowers and the small trees are common throughout India.

Bignonia suaveolens. The Indian species of bigonia. They have trumpet-shaped flowers and the small trees are common throughout India.

Stereospermum colais. The trumpet flower tree.

Stereospermum colais according to the Pandanus Database of Plants. This appears to be the best option for what the Tibetan reads; however, the readings pa ti li and pa ti’i shing both appear corrupt.