Conservation translocations have been widely used to reverse the effects of population extirpations. Most translocations are species-centred, being implemented at the local scale and usually targeting charismatic species, especially among birds and mammals. This taxonomic bias influences how translocations contribute to the conservation of phylogenetic and functional diversity at global and regional scales. Compared to animals, little is still known about plant translocations. Here, we take advantage of a comprehensive multi-taxa database of conservation translocations to investigate the taxonomic, phylogenetic and functional biases of plant translocations across nine European countries. Focusing on 16651 angiosperm species, we assess whether translocated plant species are representative of the phylogenetic and functional diversity of native plant communities at global and country-level scales. We also explore if plant translocations balance or reverse extinction risks regardless of taxonomic group, by interpreting biases in the light of species conservation status at global and national levels. Plant translocations are biased towards particular groups, with some orders being over-represented globally and across countries. Differences between countries may result from distinct national conservation targets or variations in public and political support. The taxonomic bias is reflected in both phylogenetic and functional diversity at the country level. Translocations appear to have targeted mostly herbaceous plants, with very few climbers, epiphytes and parasite plants found among translocated species. We discuss how these biases affect the conservation of phylogenetic and functional diversity and the importance of taking them into account when making recommendations for conservation practices and public policy at a continental scale.