Orbexilum onobrychis along the tail leading to the fen at Prophetstown State Park. A fair sized colony here. This plant is sometimes called French grass although as a legume family plant it is nothing like a true grass.
Orbexilum could have been introduced to this area as a result of planting prairie species when the park was established, or it might have been here all along. Photo taken July 4, 2014.
Link to Orbexilum onobrychis:
Another species of Orbexilum,
Orbexilum stipulatum, was last found over a hundred years ago in Kentucky at the Falls of the Ohio region. It has not been seen anywhere since then. It seems to me that it could have been present in Indiana too. Maybe there is some still in Indiana somewhere and no one has ever found it.
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Link to Orbexilum stipulatum:
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