Calcifugus
/kal-SIF-yoo-gus/🏷️ Taxonomy●●● Advanced
Also known as: calcifuga, calcifugum
A soil-preference epithet indicating the plant actively avoids or fails on calcareous, lime-rich, or alkaline soils. Calcifuge plants require acidic growing conditions and are the ecological opposite of calcicola plants. Understanding this epithet can prevent the mistake of planting acid-lovers on alkaline ground. Appears as calcifugus (both genders).
Etymology
From Latin calx/calcis (limestone, chalk) + fugere (to flee, to avoid), meaning "fleeing from lime."
Example
“Most heathers (Calluna vulgaris), rhododendrons, and blueberries are strict calcifuges — the epithet, though rarely used as an actual species name, is widely applied in ecological classification to describe their acid-soil requirement.”