Hey, Thalictrums are supposed to have those distinctive Thalictrum leaves that allow identification at a glance out of season. Not this one; it really does have leaves like Actaea. I suppose since the genus Actaea has gobbled up so many other species in recent revisions, it's only appropriate that a Thalictrum has assumed the traditional foliage of the Actaeas???
Anyway this is a nice smallish, ours are under .5m, plant that is flowering nicely now in an areas where we traditionally have trouble making perennials happy. There are a dozen or so plants in flowering in the dryish dappled shade above the path to the lower overlook along the path to the Pagoda.