1) Family commelinaceae 2) Liliopsid family 3) Monocot family 4) Spiderwort family 
Commelinaceae is a family of flowering plants. In less formal contexts, the group is referred to as the dayflower family or spiderwort family. It is one of five families in the order Commelinales and by far the largest of these with an estimated 650 species in 40 genera. Well known genera include Commelina (dayflowers) and Tradescantia (spiderwort...
(from the article `Commelinales`) The spiderwort family (Commelinaceae) is the largest and most important of the order. It includes, among its 38 genera and approximately 700 species, ...
[n] - large widely distributed family of chiefly perennial herbs or climbers: spiderworts
family Commelinaceae noun large widely distributed family of chiefly perennial herbs or climbers: spiderworts