Hypericum monogynum, also known as Chinese St. John's wort, is a hardy evergreen shrub that is native to China.
It has opposite, decussate leaves that are typically 2.5-5 cm long and 1.2-2.3 cm wide. The leaves are thickly papery, with a paler abaxial surface. They are usually oblong to elliptic, with a cuneate to subangustate base and an acute to rounded apex. The leaf margins are entire.
The leaves of Hypericum monogynum contain small, dark glands that are visible under magnification. These glands contain hypericin, a compound that has been shown to have antidepressant and anti-inflammatory properties.
The plant blooms in early summer, with yellow flowers that are 5-8 cm in diameter. The flowers are arranged in a monopetal inflorescence.
Hypericum monogynum is a popular ornamental plant, and it is also used in traditional Chinese medicine. The plant is considered to be safe, but it can interact with certain medications, so it is important to talk to your doctor before using it.
Here are some additional facts about Hypericum monogynum:
- The plant grows to be about 1 meter tall.
- It prefers full sun or partial shade.
- It is drought-tolerant and can withstand temperatures down to -15 degrees Celsius.
- The plant can be propagated by seed or by cuttings.
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