Ontario Trees & Shrubs website

Shrubby St Johnswort
Hypericum prolificum
(formerly Hypericum spathulatum)

Shrubby St Johnswort (Hypericum prolificum) Other scientific names: Hypericum spathulatum

Family: St. Johnswort Family (Hypericaceae)

Distinctive features: Shrub

Similar species:
  •   Kalm's St Johnswort (Hypericum kalmianum)

Flowers: Summer;  Yellow;  5 parts (petals)

Leaves: Opposite/Whorled, Simple, Entire

Height: 2 m (6 ft)

Habitat: Fields and Open Areas, Wet Areas

Books: Shrubs of Ontario: 325    Newcomb's Wildflower Guide: 294   

Native/Non-native: Native

Status: Very rare in Ontario.

Photographs: 33 photographs available, of which 4 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.

Range Map is at the bottom of the page

Shrubby St Johnswort (Hypericum prolificum) seeds forming

Shrubby St Johnswort seed head forming in September.

Shrubby St Johnswort (Hypericum prolificum) plant

View of part of a shrub, showing leaves.

Shrubby St Johnswort (Hypericum prolificum) leaf

Upper surface of leaf.

Shrubby St Johnswort (Hypericum prolificum) leaf

Underside of leaf.

Range map for Shrubby St Johnswort (Hypericum prolificum)

PLEASE NOTE: A coloured Province or State means this species occurs somewhere in that Province/State.
The entire Province/State is coloured, regardless of where in that Province/State it occurs.

(Range map provided courtesy of the USDA website and is displayed here in accordance with their Policies)