Native to (or naturalized in) Oregon:
- Broadleaf deciduous vine, 30-50+ ft (9-15 m) long. Leaves alternate, compound, palmate, 5-leaflets (quinque = 5), some 3, each leaflet stalked and 4-10 cm long, coarsely and often crenately serrate, foliage dark green in summer, purple-red and crimson in fall. Tendrils, opposite some leaves, are 5-12 branched and end in small adhesive disks. Flowers yellowish green, small, about 6 mm across, 5 green petals which are curved backward, 5 stamens with large yellow anthers, pistil has a stout style, sepals insignificant or absent; in long-stemmed clusters. Fruit blue-black, roundish, slightly bloomy, 6 mm across, ripens in fall, 2-3 seeds. Adhesive tips at tendril ends for attachment.
- Sun to shade, tolerate of any kind of soil and pollution, salt, and windy conditions. Difficult to kill.
- Hardy to USDA Zone 3 Native range from New England to Florida and Mexico, west to Missouri.