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Genus

Hypericum

Hypericum is a genus of flowering plants in the family Hypericaceae. The genus has a nearly worldwide distribution, missing only from tropical lowlands, deserts and polar regions. Many Hypericum species are regarded as invasive species and noxious weeds. All members of the genus may be referred to as St. John's wort, and some are known as goatweed. The white or pink flowered marsh St. John's worts of North America and eastern Asia are generally accepted as belonging to the separate genus Triadenum Raf.

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Plants in this genus

1 plant

Research on Hypericum

5 articles

What science is finding about Hypericum

Every article on Plant News that mentions a member of this genus, newest first.

Common herbal teas and supplements can weaken your prescription drugs

That St. John's Wort or green tea you're growing on the windowsill for a soothing cup can quietly cancel out blood thinners,...

St. John's Wort medicinal-plants / ethnobotany

This yellow-flowered herb is everywhere on nature apps right now

If you've noticed clusters of small yellow flowers with black-dotted petals along roadsides or in your garden bed this month,...

St. John's Wort invasive-species / medicinal-plants

St. John's Wort blooming peak draws hundreds of naturalist sightings

St. John's Wort blooming along roadsides and meadow edges right now is one of summer's most reliable phenology markers, and...

St. John's Wort medicinal-plants / phenology

Plants and Plant-Derived Compounds Mediate Protection Across Diverse Pathological Conditions by Targeting the PANoptosis Pathways.

The sulforaphane in your garden broccoli and kale is now showing up in lab studies as a molecular brake on the exact runaway...

St. John's Wort medicinal-plants / ethnobotany