Woody climbers, deciduous or subevergreen. Monoecious. Stems twining. Winter bud outer scales numerous, persistent. Leaves alternate or clustered on short branches; petiole long; leaf blade palmately compound, 3--5(--7)-foliolate; leaflet margin entire, sinuate, or undulate. Inflorescences axillary, racemose, sometimes umbellate; bracts subtending inflorescences, persistent, scaly. Sepals usually 3(--6), purplish red or greenish white, subvalvate, reflexed at anthesis. Petals absent. Male flowers: borne apically on inflorescence. Stamens free; filaments very short; anthers incurved at anthesis. Pistillodes small. Female flowers: 1 or 2 basally on inflorescence, larger than male flowers. Carpels 3--9(--12), free, cylindric. Stigma capitate. Fruit fleshy follicles, dehiscent along abaxial suture. Seeds numerous, in several rows within pulp, slightly compressed; embryo small.
Vines , twining. Leaves palmately compound; leaflets 3-5, articulate at base of blade and at base of petiolule. Inflorescences racemose, pistillate flowers proximal to staminate flowers in each raceme. Flowers dimorphic: pistillate flowers larger and longer pediceled than staminate flowers; sepals mostly brownish to purplish. Staminate flowers: pistillodes present. Pistillate flowers: pistils (3-)-8(-15); placentation laminar; staminodes present. Fruits follicles, fleshy, dehiscent along adaxial suture. Seeds 100-several hundred. x = 16.
Anderson, E. 1934. The genus Akebia. Bull. Popular Inform. Arnold Arbor., ser. 4, 2: 17-20. Payne, W. W. and J. L. Seago. 1968. The open conduplicate carpel of Akebia quinata (Berberidales: Lardizabalaceae). Amer. J. Bot. 55: 575-581. Sargent, C. S. 1891. The fruit of Akebia quinata. Gard. & Forest 4: 136-137.
|[Japanese akebi, name for Akebia quinata]|