Tradescantia Andersoniana rühm
The plant is 30-80 cm tall with erect, branched, angular stems, leafy along the entire length. The leaves are linear-lanceolate, violet-green. The flowers are flat, purple, blue, pink or white, collected in an umbellate inflorescence. They bloom from June to September.

Tradescantia x andersoniana
 

Eng.: Anderson's Spiderwort. Suom.: tarhajuoru (virginiankolmiokukka). Sven.: tremastarblomma.