A–B Habit, showing inflorescences and geocarpic infructescenses, and close-up of apical part of leaf with apressed papilloid hairs C Close-up of node and internode, showing small triangular interpetiolar stipules D Flowers before and at anthesis E Close-up of flower at anthesis; note diminutive bract F Opened corolla with epipetalous stamens G Stamen inserted into corolla and introrse anther H Gynoecium inside papillose calyx, with hairy style (brush-type); older gynoecium, after style has dried and fallen off to the right I Geocarpic infructescence branch with one whole capsule (mitra-shaped, with small style remnant in center), and capsular base of the fruit that has dehisced, above it J Seed.