Pilea nidiae. A Habit; note the unequal leaf laminae at each node B Leaf detail (major lamina upper surface) showing cystoliths C Stipules and stem covered with cystoliths D Staminate inflorescence E Infructescence F, G Pistillate flowers with developing achenes. (A, D from J.L. Luteyn & E. Cotton 9705 (NY); B, C from J.A. Steyermark 55533 (US); E–G from B. Stergios & R. Caracas 19810 (US)).