Literature Reference: 翠筠不乐湘娥泪，斑箨堪裁汉主冠。—— 《竹》 王叡 The emerald bamboo does not mourn the tears of the Xiang River goddess, while the spotted bamboo sheath is fit to craft the crown of a Han emperor. Source from 'Bamboo' by Wang Rui.
斑: Variegated spots or patterns.
箨: The layered sheaths of a bamboo shoot.
Meaning: The spotted bamboo sheath symbolizes resilience and elegance, metaphorically representing talent and virtue.