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

(UK, education, historical) At the University of Oxford, a student ranking above commoners but below noblemen.

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

Digitalis purpurea (purple foxglove)

plural of common good

A recurring characteristic or theme present in different events or areas.

Synonym of great egret (Ardea alba)

plural of common bittern

Synonym of Eurasian bittern

Melanitta nigra, an arctic sea bird in the family Anatidae