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Hypericum denticulatum

Coppery St. John's wort

Family Hypericaceae

About

Coppery St. John's wort is an erect perennial herb of wet, sandy places in the eastern United States.

Field notes

Morphology

Hairless, with clumped four-angled stems 25–65 cm tall that branch only at the base and in the flowerheads. Leaves are thick, leathery, ovate to oval and 0.8–2.5 cm long.

Distribution & habitat

Sandy or clayey shores, swamps, ditches, gravelly hills and pine barrens up to 700 m, from New York to Georgia and Alabama; var. recognitum rarely in Illinois.

History & etymology

Two varieties are recognised, recognitum and acutifolium. Its closest relative is a Brazilian plant, H. rigidum var. sellowianum, probably reflecting ancient long-distance dispersal.

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Habitat

Altitude
Not recorded
Altitude class
—
Native to
United States

Cultivation

Difficulty
Not recorded

Text adapted from Wikipedia, CC BY-SA 4.0.

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