Manroot: Marah oreganus
White Bryony: Bryonia alba
Balsam Apple, Wild Balsam Apple, Wild Cucumber: Echinocystis lobata - Annual. Flowers with 6 floral parts. A viny, climbing plant with palmately, 5-lobed leaves. The lobes are triangular-acute in outline and incised about 1/2 the diamter of the blade. Weedy species from the eastern US that has been introduced to eastern Oregon and Washington.
Bigroot, Coastal Manroot, Manroot, Old Man-in-the-ground, Oregon Bigroot, Wild Cucumber: Marah oregana (Synonym: Echinocystis oregana, Marah oreganus) - Perennial. Viny plant that grows along ground or climbs into trees with many spiralled tendrils. Leaves simple and palmate, with small 5-8 petaled flowers arising in loose spikes from the vines. Fruit is like a spiny cucumber or squash. This plant is found east of the Cascades primarily near the Columbia and Snake Rivers as far as the Oregon-Idaho border.