A herbaceous climbing plant, with slender, flexuose, angular, furrowed branches. Leaves membranous, covered on both surfaces with reddish, glandular dots, and with sessile glands in the axils of the nerves on the under surface, deeply 5–7-lobed, lobes linear-oblong, obtuse, irregularly pinnately divided, the median lobe largest, the basal lobes directed towards the stem. Petiole 1 in. or more in length, less than half the length of the blade, thickened and decurrent at the base for a short distance along the stem, and provided at its apex with two large glands on the upper surface. Tendrils thickened at the end. Peduncle axillary, slender, terete, longer than the adjoining leaf, bearing at the top a much-branched, many-flowered cyme, the central branch of which ends in a tendril. Male fl.: Flower-buds elliptic. Pedicels slender, longer than the flowers. Calyx funnel-shaped, about 1/2 in. long; limb 5-parted, segments imbricate, oblong, obtuse, thinner at the edges where overlapped. Petals emerging from below the centre of the calyx-tube, membranous, 3-nerved, crenulate at the edges. Filaments monadelphous; anthers protruding beyond the mouth of the calyx, basifixed, about the same length as the filaments, linear; connective only slightly prolonged. Staminodes or glands of the disk 5, short, liguliform, capitate, enclosed in membranous pouches formed by petaloid processes extending from the edges of the petals to the staminal tube. Pistil rudimentary. Female fl.....?
