Native to (or naturalized in) Oregon:
- Deciduous shrub, open, about 4-6 ft (1.2-1.8 m) high, suckering, stems 4-sided, green. Leaves opposite, simple, lance-ovate to lanceolate, 4-9 cm long, 0.8-3 cm wide, tip pointed (acuminate), base wedge-shaped, serrate, flat medium green, in fall yellow-green to red. Flowers reddish-greenish, 8 mm wide, 1-3 on a slender stalk, usually 5-petaled (3-5), petals clawed. Fruit 3-5 lobed, about 1.5 cm across, pink to scarlet, covered with prickly warts, open to reveal seeds (aril) scarlet (source of common name, Hearts-a-Burstin').
- Sun to part shade. Best on a well-drained, humus rich, slightly acid soil.
- Hardy to USDA Zone 5 Native from New York to Florida, west to Texas, an understory plant often found in shady, moist forests.
- americanus: of North America