Polygonaceae: Monochlamydeae

Mostly herb, climbing, leaves stipulate ochrea intrapetiolar, sheathing, swollen nodes; racemose, flowers small, crowded, di-trimerous, hypogynous, hermaphrodite, polyphyllous in two whorls; stamens 6 (3 + 3) or more; carpels (3), 1-loculed, single basal ovule; fruit a nut, enclosed by persistent membranous perianth.