''Aitchisonia rosea'' is a species 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 ...

in the family

Rubiaceae Rubiaceae () is a family (biology), family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with Petiole ( ...

. It is a subshrub native to south-central Iran, Afghanistan, and Pakistan. It is the sole species in genus ''Aitchisonia''. The species and genus were named in 1882. Based on a phylogenetic analysis, Backlund and Thulin synonymized ''Aitchisonia'' with genus ''

Plocama ''Plocama'' is a genus of flowering plants in the family Rubiaceae. It was described by William Aiton in 1789. It is distributed from the Canary Islands to northwestern India. The genus was expanded in 2007 when several other Rubiaceae genera we ...

'', and renamed the species ''Plocama rosea''. In 2022 Borbar ''et al.'' concluded that the specimen used in Backlund and Thulin's analysis was of '' Plocama dubia'', and conducted a phylogenetic analysis of specimens newly collected in Iran. They confirmed the placement of ''Aitchisonia rosea'' in its own genus, and proposed a new monophyletic tribe, Aitchisonieae, to contain the genus.Bordbar, F., Mirtadzadini, M. & Razafimandimbison, S.G. Phylogenetic re-assessment of the delimitation of Plocama and its species relationships and limits (Rubiaceae, Putorieae): resurrection of the monospecific genus Aitchisonia and a description of trib. nov. Aitchisonieae. ''Plant Syst Evol'' 308, 7 (2022). https://doi.org/10.1007/s00606-021-01799-4

References

Flora of Afghanistan Flora of Iran Flora of Pakistan Monotypic Rubiaceae genera Rubioideae Plants described in 1882 Taxa named by William Hemsley (botanist) Taxa named by James Edward Tierney Aitchison {{Rubiaceae-stub