species 2,561 observations
Canada St. John's Wort
Hypericum canadense
Field notes
Hypericum canadense, known as Canadian St. Johns-wort, lesser St. John's wort, and lesser Canadian St. Johnswort, is a flowering plant in the genus Hypericum. It is a yellow-flowering annual or perennial herb native to North America and introduced to Ireland and The Netherlands. The specific epithet canadense means "Canadian".
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Caterpillars
Moths and butterflies raised on it



Gray Half-Spot, Setaceous Hebrew Character, Grey Pug Moth, Pallid Leafroller Moth
5
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Plant eaters
Animals that feed on it


Ring-necked Duck, Greater St. John's Wort Beetle, Alconeura macra
3
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Flower visitors
Pollinators and other flower visitors



Common Eastern Bumble Bee, Brown-belted Bumble Bee, Two-spotted Bumble Bee, Andrena gardineri
35
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Key traits
- Layer
- Herbaceous plants
- Plant type
- Annual Wildflower
From USDA PLANTS.