Spiderwort (Tradescantia ohiensis) The common spiderwort pictured here is found in wooded edges, along roadsides and in prairies. video photo by Cynthia Gehrie The blossoms of spiderwort last only one day. video photo by Cynthia Gehrie The iris-like leaves support blue to magenta flowers with only three petals. In the center, a spray of golden stamens accent the blossom. photo by Todd Bannor Several species of spiderwort are indigenous to grassland ecosystems.