A plant that thrives in acid soils is known as a calcifuge. It is a calcifuge, suitable for cultivation in a shady, moist location in acid soil. Sometimes a complementary classification is used (calcicole/calcifuge, with calcicoles being "lime-loving" plants). This plant is a calcifuge and requires a shaded position in acid soil. It is a calcifuge, preferring acid soil in an open sunny situation. A calcifuge is a plant that does not tolerate alkaline (basic) soil. Both subspecies are calcifuge, occurring only in siliceous sands derived from weathered granite.