Appearance
Impatiens capensis is an annual herb that can grow from 2 to 5 ft. (0.6-1.5 m) tall.

Foliage
Stems are round, pale green to reddish-green, glabrous, and rather fragile. Leaves are alternate, 5 in. (12.7 cm) long, ovate, and hairless with broad teeth on margins.

Flowers
Flowers are found in clusters of 1 to 3 flowers that are 1 in. (2.5 cm) long, cone-shaped with upper and lower lips, 3 sepals, and 5 petals. The petals are dark orange with reddish streaks or brown dots. Flowering occurs from summer through fall.

Fruit
Seed capsules develop in fall and are oblong, divided into 5 sections which spilt apart and fling large seeds a considerable distance.

Ecological Threat
Impatiens capensis can be found in moist woodlands, along rivers, swamps, and roadside ditches. It is native to the eastern half of the U.S. from Texas up to North Dakota and to the coast, plus Colorado, Washington, Oregon, and Idaho.

Selected Images

Maps

Invasive Listing Sources

• Connecticut Noxious Weeds
• Washington Noxious Weeds

References