Etymology: Thlaspi: from Greek thlaein, "to crush," from the flattened silicle, and the Greek name for a cress
Plants: erect, annual, 4"-20" tall forb, smooth, rank odor
Leaves: stalkless, base with 2 narrow lobes
Flowers: white, 4-parted, 1/8" wide, petals 2 times as long as the sepals; inflorescence a cluster (raceme) of stalked flowers; blooms April-June
Fruits: roundish, 1/2" wide pod, erect, winged all around, the notch at the tip deeper than wide
Habitat: disturbed sites
Hazardous: Careful, this plant is hazardous!
Conservation Status: Introduced - naturalized
Flora of North America: Flora of North America Floristic Rating: Wetland Indicator = NI USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"