The term "Rosa davidii" does not correspond to a widely recognized or established species in botanical nomenclature according to major taxonomic databases such as The Plant List, World Flora Online, or the International Plant Names Index (IPNI). The genus Rosa encompasses a large number of wild and cultivated rose species, and while some species are named after individuals (e.g., "davidii" often honors a person, possibly the French missionary and naturalist Armand David), no verified, scientifically accepted species named Rosa davidii is currently documented in authoritative botanical sources.
It is possible that "Rosa davidii" may appear in horticultural literature, informal usage, or as a synonym for another rose species, but such usage has not been validated through formal taxonomic review or peer-reviewed literature. Without verifiable sources, the status of this name remains uncertain.
In botanical naming conventions, the epithet "davidii" is commonly used to honor Father Armand David, who contributed significantly to the discovery of Asian flora and fauna in the 19th century. However, no species within the genus Rosa has been officially and widely accepted under this name.
Therefore, Rosa davidii is not recognized as a valid scientific name in current botanical taxonomy.