Pityopsis falcata is a clumped, perennial herb, 10-35 cm tall, stem wooly-white, branched above.
Leaves alternate, linear, to 10 cm long, 0.5 cm wide.
Flowers yellow; arising in dense heads from the expanded top of the flower stalk (receptacle); the flowers very small, tubular; of two forms; a central dense cluster of more or less radially symmetrical disk flowers, and a peripheral ring of bilaterally symmetrical flowers with one enlarged petal, ray flowers; the cluster surrounded at its base by a series of small bracts (involucre) 0.6-0.9 cm high, in several overlapping rows; heads 1-2.5 cm wide, blooming and fruiting July-Oct.
Fruit dry, 1-seeded, with a double row of bristles, wind dispersed. Probably eaten by birds and small mammals.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Undisturbed, dry sandy soil in open areas, back dunes.