Particularly treasured are "golden threads," especially those running around the edge of the leaf, a gene mutation that may occur in just one orchid in 10,000.
「線藝品」就是一般人俗稱的「牽金線」，其實線條並非純金色，因為中國人一向喜愛黃金，所以取名牽金線，意謂珍貴。中國蘭葉片上會有金線，是生物學上基因突變形成的。據統計，大約在一萬株蘭花中，才會有一株長金線。