Tabernaemontana sananho is a tropical tree species in the family Apocynaceae known as lobo sanango.

Lobo sanango grows in the Amazon Basin of northern South America.

[3] In Amazonian traditional medicine, preparations of the leaves, pulp, bark, and latex are either applied topically or taken internally to treat various conditions.

[8] The Secoya people of Ecuador call this plant baĩ su'u and put the sticky liquid from the fruit into dogs' noses so they can "smell far in hunting."

Phylogenetic studies suggest T. markgrafiana to be its closest relative with the following phylogenetic relationships:[10] T. alba T. citrifolia T. amygdalifolia T. columbiensis T. sananho T. markgrafiana T. siphilitica