Missouri Plants Peppergrass   (Lepidium campestre) Tracheophyta: Angiosperm: Dicot: Mustard (Brassicaceae) Non-native from Eurasia Habitat: any full sun area. ID Features: white flowers in candelabra configuration atop short stalk. Natural History: Peppergrass has lanced-shaped simple leaves and white flowers held upright at the branch tips. It grows in any untended area.
The information is from: Missouri Wildflowers by Edgar Denison, 5th Edition, Missouri Department of Conservation, ©1998.