Label the reconstructed tree's synthesised group levels with official EUNIS names. Generic 'names' lookup arg + name_source provenance column on resy_expert_tree(); resy_eunis_names() ships the official EUNIS 2021 habitat names (EEA, bundled with provenance) so Q->Wetlands, Q1->Raised and blanket bogs, S->Heathland scrub and tundra, etc. Names render apart from expert descriptions (italic + EUNIS tag), no silent substitution. Structure cross-checked vs paper_hexgrids_2026 (EUNIS Level-1 = nine classes). --as-cran 0/0/0.