Zingiberaceae, or the Ginger family, is a family of flowering plants consisting of aromatic perennial herbs with creeping horizontal or tuberous rhizomes, comprising more than 1300 species, distributed throughout tropical Africa, Asia, and the Americas.

Zingiber mioga

White ginger lily

Turmeric Root Tuber

Source: http://www.chinadaily.com.cn/regional/2009-07/10/content_8413500.htm