United States, Illinois, Mason, South of Havana along main highway (Route 78) south towards Bath. Havana Quadrangle, elevation about 450 feet. The Illinois River Section of the Illinois & Mississippi Rivers Bottomlands Natural Division. Growing in a series of seep areas along White Oak Creek. (WGS84/NAD83)
40.25702 -90.09005
Growing on hillside seep (largest developed section of the seep) along edge of White Oak Creek with Celtis occidentalis, Fraxinus nigra, Platanus occidentalis, Quercus rubra, Robinia pseudoacacia, Sassafras albidum, Cephalanthus occidentalis, Cornus sericea, Decodon verticillatus, Ribes americanum, Rosa palustris, Viburnum lentago, Toxicodendron radicans, Apios americana, Boehmeria cylindrica, Campanula americana, Cinna arundinacea, Eupatorium perfoliatum, Eupatorium serotinum, Hackelia virbginiana, Impatiens capensis, Leersia virginica, Onoclea sensibilis, Physostegia speciosa, Pilea pumila, Polygonum virginianum, Saururus cernuus, Stachys tenuifolia, Symplocarpus foetidus, Thelypteris palustris, Urtica gracilis, etc. Shrub about 9 feet tall.