Hypericum canadense is an annual, or perennial herb from short, leafy basal shoots, stems 10-60 cm tall.
Leaves opposite, narrow, widest above middle, 1-4 cm long, 0.1-0.4 cm wide, speckled with minute, translucent glands (hold up to light), tip blunt, base tapered, 1-veined.
Flowers yellow, 5-parted, small, petals 0.3 cm long, sepals 0.3-0.5 cm long, stamens 12-22, styles 3; inflorescence terminal, a flower between each pair of branches; blooms and fruits July-Sept.
Fruit dark red-purple, 0.4-0.6 cm long, conical capsule with many small seeds.
Wetland status: FACW.
Frequency in NYC: Infrequent.
Habitat: Open, moist to wet soil, edges, marshes.
Range: Nf to Quebec, south to GA and AL.