Thysanocarpus curvipes is a species of flowering plant in the family Brassicaceae known by the common names sand fringepod[2] and lacepod.

It is an annual herb producing a branching or unbranched stem 10 to 80 centimeters tall.

The inflorescence is a raceme of flowers with four white or purple-tinged petals and purple sepals.

The fruit is a flattened, rounded or oval disclike capsule with a thin wing around the edge.

The fruit is under a centimeter long and the wing is variable in appearance, flat or wavy, sometimes perforated.