One species makes up this genus, but it is magnificent. Astilboides tabularis  creates exceptional drama and contrasts well with finely-textured foliage. The magnificent leaves have ruffled edges and prominent veins, and form a central, concave depression at the point of stem attachment. The leaves mature to 3 feet wide, and splay outward, forming what looks like an enormous foliage bouquet. Small panicles of creamy white flowers appear on 5-foot-tall stems. It is often known as Rodgersia tabularis .