Luke 17:6; distinct from the SYCAMORE (Luke 19:4; Septuagint in Old Testament translated the latter however sycamine, meaning the Egyptian sycamine). The sycamine is the mulberry tree (morus) cultivated for supplying food for the silkworm caterpillars. Slow growing; but attaining large size, and stretching deep roots, so that it would require strong force to "pluck it up by the root."