- a widely cultivated shrub or small tree, Hibiscus syriacus, of the mallow family, having showy white, reddish or purplish flowers.
- a St.-John's-wort, Hypericum calycinum, having evergreen foliage and showy yellow flowers.
- a plant mentioned in the Bible.
- a creeping shrub, Hypericum calycinum, native to SE Europe but widely cultivated, having large yellow flowers: family Hypericaceae
- a Syrian malvaceous shrub, Hibiscus syriacus (or Althaea frutex), cultivated for its red or purplish flowers
