How to Grow Thalictrum Thalictrum (thal-ik-trum) From the Greek thaliktron, a name used to describe a plant with divided leaves, possibly of the same family (Ranuncalaceae). Meadow rue. A genus of 150 species of hardy perennials, herbaceous plants, mainly from north temperate regions but also represented in tropical South America, tropical Africa and South Africa. Those cultivated have elegant, […]