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  1. Life
  2. Plants
  3. Vascular Plants
  4. Dicots
  5. Nances, Willows, and Allies
  6. St. John's Worts and Allies
  7. St. John's-worts
  8. Hypericum tetrapterum
  9. Square Stemmed Saint John's Wort

species 3,691 observations

Square Stemmed Saint John's Wort

Hypericum tetrapterum

Status
introduced
Where
In the US
Source
iNaturalist

Field notes

Supports All

13 native animals
supported in the US
  • Caterpillars Moths and butterflies raised on it Long-winged Shade, Setaceous Hebrew Character, Grey Pug Moth 3
  • Plant eaters Animals that feed on it Mallard, Common Raven, Eurasian Jackdaw, Redpoll 7
  • Flower visitors Pollinators and other flower visitors Old World Swallowtail, Variable Duskyface Fly, Cabbage Root Fly 3

Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

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