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Hypericum densiflorum

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Hypericum densiflorum, also known as bushy St. John’s wort or dense St. John’s wort, is a flowering perennial shrub native to North America. The name densiflorum means “densely flowered,” describing its many-flowered clusters.

Description:
It is a densely branched shrub, 0.5–2 meters tall, with slender, angled branches and coppery bark. Leaves are narrow (about 1–2 cm long). The yellow flowers are about 1.2–1.7 cm wide and appear in crowded clusters. The fruit is a capsule with three parts.

Blooming and fruiting:
Flowers bloom from July to September, and fruits form from early October through autumn.

Habitat:
It likes acidic soils in moist or wet places such as stream, pond, and lake banks, seepage slopes, and wet meadows. It grows best on sandy clay loam, from sea level up to about 1000 meters in elevation.

Distribution:
Found throughout the eastern and southern United States, extending west to Texas and north to New York.

Ecology:
It’s a pollinator plant that attracts bees.


This page was last edited on 3 February 2026, at 10:15 (CET).