Ontario Wildflowers website

Whorled Loosestrife
Lysimachia quadrifolia

Other common names: Four-leaved Loosestrife, Whorled Yellow Loosestrife

Family: Primrose Family (Primulaceae), (Yellow Loosestrife Family (Myrsinaceae))

Group: Loosestrifes

Distinctive features: Leaves and yellow flowers in whorls of four.

Flowers: Summer;  Yellow;  5 parts (petals);  Yellow. Summer. In whorls of four.

Leaves: In whorls of four.

Habitat: Wet Areas;  Wet areas.

Books: Newcomb's Wildflower Guide: 266    Peterson's Field Guide to Wildflowers: 140    ROM Field Guide to Wildflowers of Ontario: 344   

Native/Non-native: Native

Notes: Don't confuse "L. quadriflora" with "L. quadrifolia".

Origin and Meaning of Names:
 Scientific Name: quadrifolia: four-leaved


Photographs: 16 photographs available, of which 1 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.

Range Map is at the bottom of the page
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Whorled Loosestrife (Lysimachia quadrifolia)

I have only found one specimen of this species.

This photo shows the four-flowered aspect of this plant - four flowers at each level of leaves.

The leaves are in whorls of four as well.
 PREVIOUS  Primrose          Primrose Family          NEXT  Primrose  


Range map for Whorled Loosestrife (Lysimachia quadrifolia)

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)