Razafimandimbisonia minor is a species of flowering plant in the family Rubiaceae. It is a shrub or tree with leathery leaves. It is endemic to Madagascar, and grows in shrublands and forests.
R. minor was described in 1879, and moved to its current genus in 2009. It is the type species of Razafimandimbisonia. The IUCN lists the species as of Least Concern.
Taxonomy In 1879, Henri Ernest Baillon described Alberta minor, a synonym of Razafimandimbisonia minor. In 2009, Kent Kainulainen and Birgitta Bremer moved the species to the newly created genus Razafimandimbisonia.
Razafimandimbisonia minor is the type species of the genus Razafimandimbisonia.
Distribution Razafimandimbisonia minor is native to the seasonally dry tropical biome of central Madagascar. It is endemic to the country. Within Madagascar, it is present in the provinces of Antsiranana, Antananarivo, Fianarantsoa, Toamasina, and Toliara. Its estimated extent of occurrence is .
The species occurs in shrublands, forests of Uapaca bojeri trees, and rocky areas. The species grows on laterite, weathered granite, and quartzitic substrates, and is found at elevations of .
Description Razafimandimbisonia minor is a shrub or tree up to high.
It has leathery, persistent leaves. The corolla is tube-shaped, and more or less curved. The fruits are dehiscent.
Conservation In 2019, the IUCN assessed Razafimandimbisonia minor as of Least Concern. It is present in twelve protected areas, including Andringitra National Park, Marolambo National Park, and Isalo National Park. There are thirty-one known sub-populations.
The species is threatened by fire, deforestation, and mining.
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