Hypericum gentianoides is an annual herb to 50 cm, stems slender with numerous, opposite thread-like wiry branches.
Leaves opposite, scale-like, to 0.4 cm, appressed to stems.
Flowers yellow, tiny, in axils, scattered along branches, petals to 0.4 cm, sepals to 0.2 cm.
Fruit a dry capsule, cone-shaped, to 0.7 cm; blooms and fruits July-Oct.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Sterile, sandy soil.