(Arn.) Hara, J. Jap. Bot. 28:294.1953 Erect glabrous herb; stems reddish-brown and viscid (at least on drying). Petioles less than 1 cm long; blades narrowly lanceolate, long and gradually tapered to apex, acute at base, 8-13 cm long, 0.5-1.7 cm wide. Flowers solitary in axils, usually 5-parted. Fruits +/- oblong, constricted in the middle, +/- viscid (at least on drying), less than 1 cm long; seeds many, biseriate in each locule, surrounded by endocarp. Shattuck 1161.