Thelypodium laciniatum is a species of flowering plant in the mustard family known by the common name cutleaf thelypody.

[1] It is native to western North America, particularly the Great Basin and surrounding plateau and foothill habitat, where it grows on dry rocky cliffs and hillsides in sagebrush and scrub, usually below 2,400 metres (8,000 ft) elevation.

[2][3] Thelypodium laciniatum is a biennial herb which grows from a taproot resembling a radish.

The large inflorescence is a dense, spikelike raceme of mustardlike flowers with four sepals and four petals, which are both whitish or pale lavender; they bloom in early summer.

In fruit the raceme is covered in the siliques, which curve or stick straight out like whiskers.