Definition

Noun: 1. A perennial herb of the species Hypericum tetrapterum: A European plant of the St. John's wort family (Hypericaceae), characterized by its square stems and opposite leaves. It is native to regions from Ireland and France to western Siberia.

Usage Notes

• This is a specific botanical name for a plant species. It is typically used in formal or scientific contexts related to botany, horticulture, or herbalism.
• The name "St Peter's wort" distinguishes it from other, more common species like (common St. John's wort).

Examples

• Noun:
  • The wetland meadow was dotted with the yellow flowers of St Peter's wort.
  • Botanists identified St Peter's wort by its distinctive four-winged stems.
  • Unlike common St. John's wort, St Peter's wort prefers damper habitats.

Advanced Usage

• The plant is sometimes studied for its ecological role in wetland habitats.

Variants and Related Words

• Scientific Name: .
• Common Names: Square-stemmed St. John's wort, Peterwort.
• Related Plant: St. John's wort (a general term for plants in the genus).

Synonyms

• Square-stemmed St. John's wort
• (scientific synonym)

Notes on Different Meanings

• This term has only one primary meaning as the name of a specific plant species. It should not be confused with the more widely known "St. John's wort," which usually refers to .

Noun

1. European perennial St John's wort; Ireland and France to western Siberia