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Description
Hypericum Triquetrifolium, also known as Three-angled St. John’s Wort, is a flowering plant species that belongs to the Hypericaceae family. It is native to Europe and Western Asia and can grow up to 90 cm tall. The plant has a distinct citrus-like scent and is known for its medicinal properties.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Hypericaceae |
| Genus | Hypericum |
Appearance
The Three-angled St. John’s Wort has a woody stem that is covered in small, narrow leaves. The leaves are green and have a triangular shape. The plant produces yellow flowers that bloom in the summer. The flowers have five petals and are about 2 cm in diameter. The fruit of the plant is a capsule that contains small, black seeds.
Care Guide
The Three-angled St. John’s Wort prefers well-drained soil that is moist but not waterlogged. It should be planted in an area that receives full sunlight. The plant should be watered regularly, especially during periods of drought. Fertilization is not necessary, but a slow-release fertilizer can be applied in the spring. The plant is hardy to USDA zones 5 to 9.
Common Pests & Diseases
The Three-angled St. John’s Wort is relatively disease-resistant, but it can be affected by rust and powdery mildew. It may also be attacked by aphids and spider mites. These pests can be controlled with insecticidal soap or neem oil.
Habitat
The Three-angled St. John’s Wort can be found in meadows, pastures, and open woodlands. It prefers well-drained soil and can tolerate dry conditions. The plant is native to Europe and Western Asia but has been introduced to other parts of the world, including North America and Australia.
Question and Answer
Q: Is the Three-angled St. John’s Wort poisonous?
A: No, the plant is not considered toxic, but it should not be consumed in large quantities.
Q: How often should I fertilize my Three-angled St. John’s Wort?
A: Fertilization is not necessary, but a slow-release fertilizer can be applied in the spring.
Q: Can I grow Three-angled St. John’s Wort indoors?
A: No, the plant prefers full sunlight and is not well-suited to indoor growing.
Q: How do I propagate Three-angled St. John’s Wort?
A: The plant can be propagated by seed or by taking stem cuttings in the spring.
Related Plants
- Hypericum Androsaemum
- Hypericum Calycinum
- Hypericum Perforatum
- Hypericum Kalmianum
References
- Flora of North America: Hypericum Triquetrifolium
- RHS: Hypericum Triquetrifolium
- Missouri Botanical Garden: Hypericum Triquetrifolium
- USDA Plants Database: Hypericum Triquetrifolium
