Fagus sylvatica

unusual / exceptionally good; preeminent

(figuratively) common practise, widespread idea, commonplace habit / A standard of measurement that can be used for comparing disparate things.

(hymnody) A hymn metre characterized by a quatrain of alternating lines of iambic tetrameter and iambic trimeter.

Rumex acetosa, a taxonomic species within the family Polygonaceae, garden sorrel, native in much of Europe.

Polypodium vulgare, native to western Europe and northern Africa.

(transport, rail transport) a person or company that undertakes to transport goods for the general public or passengers on regular routes at agreed rates.

plural of common carrier

Achillea millefolium, a flowering plant widespread in the temperate Northern Hemisphere, formerly and sometimes used to stanch the flow of blood.

plural of common good