Arabis lyrata is a biennial or perennial herb to 40 cm tall, tufted, stem branched from hairy base.
Leaves alternate on flowering stem, scattered, hairy, at least below, linear to narrowly spatula-shaped, lower ones often toothed; basal rosette leaves spatula-shaped, to 4 cm long, entire to pinnately lobed.
Flowers white, petals 4, to 0.8 cm long, 0.3 cm wide, widest above middle.
Fruit dry capsule to 4.5 cm long, 0.1 cm wide; seeds in one row, wingless, April-May.
Wetland status: FACU.
Frequency in NYC: Very infrequent.
Habitat: Dry woods and open areas, sandy soil.
Notes: Arabis species are host to the larvae of the falcate orangetip butterfly, Anthocharis midea Pieridae (Pyle 1981). .