Hypericum canariense is a species of flowering plant in the family Hypericaceae known by the common name Canary Islands St. John's wort.

[6]: 219  It is also known as an introduced species in Australia, New Zealand, and the US states of California and Hawaii, where it is an escaped ornamental plant and generally considered a minor noxious weed.

[8] It is also prominent in dry scrub habitats and in mesic forests, often alongside Globularia salicina.

The plentiful flowers each have five bright to deep yellow petals each just over a centimeter long and many yellowish whiskery stamens.

[9] The species is commonly misidentified as H. canadense or Cleomella arborea because of their similar flower structure and large stamens.