''Hasseltiopsis'' is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the family

Salicaceae The Salicaceae are the willow family of flowering plants. The traditional family (Salicaceae ''sensu stricto'') includes the willows, poplars. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumsc ...

. It includes a single species, ''Hasseltiopsis dioica'', a tree native to southern Mexico and Costa Rica. Formerly placed in the heterogeneous family

Flacourtiaceae The Flacourtiaceae is a defunct family of flowering plants whose former members have been scattered to various families, mostly to the Achariaceae and Salicaceae. It was so vaguely defined that hardly anything seemed out of place there and it bec ...

,Sleumer, H.O. 1980. Flacourtiaceae. ''Flora Neotropica'' 22: 1-499. ''Hasseltiopsis'' is now classified in Salicaceae, along with close relatives '' Prockia'', '' Pineda'', '' Neosprucea'', and ''

Banara ''Banara'' is a genus of flowering plants in the family Salicaceae (formerly in Flacourtiaceae). Species accepted by the Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Bo ...

''.Alford, M.H. 2008. Revision of ''Neosprucea'' (Salicaceae). ''Systematic Botany Monographs'' 85: 1-62.

References

Monotypic Malpighiales genera Salicaceae Salicaceae genera Flora of Costa Rica Flora of Southeastern Mexico Flora of Veracruz {{Salicaceae-stub