''Langbiangia'' is a genus of

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

Gesneriaceae Gesneriaceae, the gesneriad family, is a family (biology), family of flowering plants consisting of about 152 genera and ca. 3,540 species in the tropics and subtropics of the Old World (almost all Didymocarpoideae) and the New World (most Ges ...

. It includes three species

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the Langbiang Plateau in southern Vietnam.Luu HT, Hsieh C-L, Chuang C-R, Chen C- W, Tran NT, Vu NL, et al. (2023) ''Langbiangia'', a new genus of Gesneriaceae endemic to Langbiang Plateau, southern Vietnam and a taxonomic endeavor to achieve key targets of the post-2020 global biodiversity framework. ''PLoS ONE'' 18(5): e0284650. https://doi.org/10.1371/journal. pone.0284650 All three species are calciphilous, growing on humid fertile soils derived from limestone karst, in evergreen broadleaved montane rain forest from 1,450 to 2,000 meters elevation. Three species are accepted. *'' Langbiangia annamensis'' *'' Langbiangia poilanei'' *'' Langbiangia scutellifolia'' The three species were formerly classed in genus '' Primulina'', a mostly calciphilous genus native to Vietnam and southern China. The Langbiang Plateau species were the southernmost and disjunct species of ''Primulina''. A phylogenetic analysis published in 2023 found that the three species were distinct from ''Primulina'', and they were placed in the new genus ''Langbiangia'', named for the plateau on which they live.

References

{{Taxonbar, from= Q128809264 Didymocarpoideae Gesneriaceae genera Endemic flora of Vietnam Taxa described in 2023