Western Spiderwort

Tradescantia occidentalis

According to some sources, Spiderwort is named such because the sap from the broken stem forms filaments like a spider's web.

Spiderwort blossoms are normally blue. When the blossom is exposed to radiation it turns light purple.

Several types of spiderwort exist. The Western Spiderwort is very similar to the Ohio Spiderwort. Both are common to Texas.