St. John's wort family
Clusiaceae

Image: Wikimedia Commons (See link for license)

St. John's wort family

Clusiaceae

オトギリソウ科

Share on X

A family of plants with yellow flowers including St. John's wort (Hypericum erectum), also known in the broad sense as the mangosteen family. About 9 genera and 590 species are distributed from temperate to tropical regions, with many species native to Japan. Characterized by oil glands and black gland dots on leaves.

Key Characteristics

  • Leaves bear oil glands (translucent dots) or black gland dots
  • Flowers are pentamerous, actinomorphic, with stamens in numerous fascicles
  • Petals are mostly yellow
  • Fruit is a capsule or berry

Phylogenetic Position

Angiosperms > Eudicots > Core eudicots > Malpighiales > Clusiaceae

Divergence Era

Late Cretaceous to Paleogene (about 80–70 million years ago)

Representative Genera

オトギリソウ属(Hypericum)マンゴスチン属(Garcinia)カルオフィルム属(Calophyllum)

Related Evolution Events

  • Evolution of secondary metabolites with medicinal properties such as hypericin and hyperforin
  • Diversification of oil glands (gland dots)
View on evolution timeline →

Plants in St. John's wort family on this site

🌿 View in taxonomy
📚オトギリソウ科の図鑑を探す

AI-generated, needs verification