Thalictrum can be rhizomatous or tuberous perennials with ternately or pinnately divided, often attractive foliage, and panicles or racemes of small flowers with showy stamens and sometimes large colourful petal-like sepals
T. delavayi is an upright herbaceous perennial to 1.5m, with large leaves divided into many small oblong leaflets, and large open panicles of lilac-mauve flowers 2cm in width, with prominent cream stamens