a plant that grows in calcium deficient soils

A plant hates alkaline soils and will not grow in them.

when a specific plant rejects conditions of lime and/or chalk.

Plants that cannot tolerate calcium-rich soils, containing chalk or limestone etc.

( Ecol.) A plant which tends to avoid calcareous soils. Cf. Basifuge. ( BCFT.).

not on soils with free Ca C.

A calcifuge is a plant that does not tolerate alkaline (basic) soil. The word is derived from the Latin 'to flee from chalk'. These plants are also described as ericaceous, as the prototypical calcifuge is the genus Erica (heaths).