Chamaesyce nutans is an annual herb to 80 cm, more or less erect, young parts finely hairy; sap milky, acrid. Stems often pinkish.
Leaves opposite, oblong 1-3.5 cm long, about 0.3-1 cm wide, sides usually unequal, margin finely toothed.
Flowers tiny, inconspicuous, monoecious, but males and females grouped together, axillary (use lens), stamen one, pistil one, several males surrounding one female, clustered above a lobed bract.
Fruit a dry, 3-lobed capsule, 0.2 cm long; blooms and fruits June-Oct.
Wetland status: FACU-
Frequency in NYC: Very infrequent.
Habitat: Open, dry, disturbed soil, lawns, ball fields, gardens.