Sabatia stellaris. Jamie Cromartie. Native Flora of the Eastern United States. 7/2017

Sabatia stellaris is an annual herb, 20-60 cm tall (can bloom when much smaller if mowed), stems 4-sided, sparsely branched, pale gray-green, hairless. 

Leaves opposite, no stalk, blade 2-4 cm long, usually widest above middle, tip pointed, base narrow. 

Flowers pink with yellow eye and anthers, 5-parted, radially symmetrical, petals about 1 cm long, sepals linear; blooming July-Sept. 

Fruit dry, hollow, a linear capsule, splitting open to release seeds. 

Wetland status: FACW+. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: High salt marshes.