Spirotropis longifolia is a species of flowering plant in the legume family, Fabaceae.

It is a tree native to Venezuela, Suriname, and French Guiana in northern South America.

It is the sole species in genus Spirotropis.

[1] Symbiotic Relationships The tree forms symbiotic relationships with Bradyrhizobium bacteria and arbuscular mycorrhizal fungi, which contribute to its dominance in these ecosystems and enhance its ability to thrive in nutrient-poor soils.

[2] Phytochemistry Phytochemical analysis of Spirotropis longifolia roots has led to the isolation of unique isoflavonoids that exhibit antifungal activity, which could be used for medicinal applications.