''Duparquetia orchidacea'' is a

liana A liana is a long-Plant stem, stemmed Woody plant, woody vine that is rooted in the soil at ground level and uses trees, as well as other means of vertical support, to climb up to the Canopy (biology), canopy in search of direct sunlight. T ...

which is native to tropical west Africa. It is the only species in the subfamily Duparquetioideae. It is found in humid tropical forests in West and Central Africa. It is a basal member of the

Fabaceae Fabaceae () or Leguminosae,International Code of Nomen ...

, as evidenced by the distinctive structure of its flowers and wood, and phylogenetic studies.

References

Fabaceae Monotypic Fabaceae genera Taxa named by Henri Ernest Baillon Flora of the Afrotropical realm {{Fabaceae-stub