For Han people, it doesn't mean anything specific. Here I think it's just refering woods. You can see bamboo leaves in the zoomed-in version: http://g.search.

For Han people, it doesn't mean anything specific. Here I think it's just refering woods. You can see bamboo leaves in the zoomed-in version: http://g.search.alicdn.com/img/bao/uploaded/i4/i1/740891439/TB2gZ0gtQOWBuNjSsppXXXPgpXa_!!740891439-0-item_pic.jpg http://g.search.alicdn.com/img/bao/uploaded/i4/i1/740891439/...