Enemion biternatum Raf., Isopyrum biternatum (Raf.) Torr. & A. Gray, False Rue Anemome.

Enemion biternatum, Isopyrum biternatum, False Rue Anemome. Somewhat similar to Rue Anenome (Thalictrum thalictroides) but with more "petals" which are actually white to pink sepals, more deeply divided leaves alternate on the stem, where as those of Rue Anenome are mostly opposite leaf-like bracts. Note the tiny glandular tips on the leaflets of False Rue Anenome. An alkaloid, Isopyroine, was first reported in 1903. Taxonomic wrangling places this species variously in Enemion or Isopyrum, hence the multiple names.

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