| CHRISTMASROSE | Helleborus niger is its Latin name |
| CHRISTMAS | Seasonal festival girl's Helleborus niger (9,4) |
| ROSE | Seasonal festival girl's Helleborus niger (9,4) |
| SOMALI | Ergo, country on the Niger is African |
| REIGN | As a rule 'Niger' is misspelled (5) |
| UNERRING | Making no mistake in run, Niger is prepared for it (8) |
| MERCURY | It flows like water and shines like a precious metal, which gives it its Latin name. What's its common name? (7) |
| TENCH | Its Latin name is Tinca tinca (5) |
| LEAD | Metallic element whose symbol Pb is derived from its Latin name plumbum (4) |
| IRON | Element whose symbol is Fe because of its Latin name ferrum |
| SARTORIUS | A muscle that received its Latin name because it is useful in assuming the cross-legged position that ancient tailors used in their work (9) |
| THUJA | Either spelling of the evergreen conifer also known by its Latin name arbor vitae (tree of life) (5) |
| ASPEN | Deciduous tree with leaves that quiver in the slightest breeze hence its Latin name Populus tremula (5) |
| YARROW | Herb used by Achilles to heal his men's battle wounds according to legend, hence its Latin name Achillea millefolium (6) |
| NEEP | Dialect term for a turnip, derived from its Latin name napus (4) |
| RAGGEDROBIN | A campion in bloom during the months when cuckoos call, hence the latter part of its Latin name floscuculi meaning "flower of the cuckoo" (6,5) |
| NIGER | Christmas rose is Helleborus ___ (5) |
| EMMA | This cultivar of Helleborus x nigercors is an 1815 novel by Jane Austen! (4) |
| AMPLE | Word that, from its Latin origins to its modern usage, has consistently conveyed the idea of abundance, capaciousness and largeness (5) |
| SALSA | Dance, its Latin origin central (5) |