Tradescantia pinetorum is a species of Tradescantia

Tradescantia

Tradescantia , the Spiderworts, is a genus of an estimated 71 species of perennial plants in the family Commelinaceae, native to the New World from southern Canada south to northern Argentina. They are weakly upright to scrambling plants, growing to 30–60 cm tall, and are commonly found...

and part of the Commelinaceae

Commelinaceae

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...

 family.

Growth

Tradescantia pinetorum has strongly pubescent sheaths and purple petals that are 8–10 mm (0.31496062992126–0.393700787401575 ) long. The genus Commelina

Commelina

Commelina is a genus of approximately 170 species commonly called dayflowers due to the short lives of their flowers. They are less often known as widow's tears. It is by far the largest genus of its family, Commelinaceae...

has flower buds enclosed in a sheath called a spathe, while Tradescantia does not have a spathe.Tradescantia pinetorum has glandular pubescent sepals, while Tradescantia occidentalis

Tradescantia occidentalis

Tradescantia occidentalis is a plant in the dayflower family, Commelinaceae. It is listed as a threatened species in Canada....

 has glabrous sepals.

Scientifically related plants

Scientifically related plants include Tradescantia pedicellata and Aneilema pinetorum.