Vegetative plants. Key characterisics: leaves are alternate, densely pubescent, large and heart-shaped. Foliage has a unique foul odor from the resin that it secretes.
Flowers are pinkish-white and may have yellow and purple spots.
Fruit. Key characteristics: "beaked-shape" capsule. Image courtesy of Dean Wilson, University Outreach and Extension East Central Regional Agriculturalist.
Seed. Seed are brownish-black and very rough-textured. Length is approximately 9.0 mm with a width of approximately 6.0 mm at their widest point.
Life cycle: summer annual.