The genus name is Japanese, ki-rengeshōma (黄蓮華升麻); ki means ‘yellow’ and rengeshōma is a somewhat similar plant, the false anemone (Anemonopsis).
A herbaceous perennial forming a clump to 1.2m, with palmately lobed leaves and dark maroon stems and nodding, fleshy, narrowly bell-shaped creamy-yellow flowers to 3.5cm in length in open panicles. Flowers from late summer to mid-autumn. Height 120 cm. Likes a sheltered site with acid, moist but well-drained soil in full - to partial shade.
Photographs © Hans van den Bos