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It has splendid iridescent color
This is a wonderful example for any collection
5 inches in diameter at its widest point
Seed Capsules (aff Salix or Populus)
The available morphological characters place the fossil species within the Salicaceae as an immediate sister to the clade containing Populus and Salix
Eocene Green River Undescribed Birthwort P-GRP2-16-013 Fossil Flower It has splendid iridescent colorUndescribed Birthwort Green River Formation Middle Eocene Lincoln County, Wyoming This extraordinary example is interpreted to be an undescribed Birthwort leaf possible from the family Aristolochiaceae. Birthworts (also known as pipevine or Dutchman's pipe) are perennial herbaceous plants, shrubs, and vines. There are about 400 living specie today. These plant leaves are rare in the Green River Formation. This specimen is from the 18 inch layer. The