Observaciones de grantfessler

Disturbed mesic alluvial open woodland.

Associates: Juglans nigra, Acer saccharinum, Acer negundo, Ulmus americana, Celtis occidentalis, Crataegus mollis, Populus deltoides, Catalpa speciosa, Pyrus calleryana, Lonicera maackii, Sambucus canadensis, Cornus drummondii, Ribes missouriense, Parthenocissus quinquefolia, Rubus occidentalis, Botrypus virginianus, Stellaria media, Antenoron virginianum, Circaea canadensis, Cardamine concatenata, Cardamine bulbosa, Viola sororia, Viola missouriensis, Trillium recurvatum, Dicentra cucullaria, Erythronium albidum, Rudbeckia laciniata, Galium triflorum, Galium aparine, Solidago gigantea, Eutrochium purpureum, Verbesina alternifolia, Ranunculus abortivus, Lysimachia nummularia, Teucrium canadense, Carex blanda, Carex hirtifolia, Erigeron annuus, Hydrophyllum virginianum, Ageratina altissima, Silphium perfoliatum, Phlox divaricata laphamii, Chaerophyllum procumbens, Carex grisea, Elymus virginicus, Ranunculus hispidus nitidus

Disturbed wet-mesic to mesic woodland; urban ravine.

Associates: Prunus serotina, Ulmus americana, Carya cordiformis, Celtis occidentalis, Acer negundo, Juglans cinerea, Salix nigra, Parthenocissus quinquefolia, Toxicodendron radicans, Ribes missouriense, Circaea canadensis, Sanicula odorata, Cryptotaenia canadensis, Geum canadense, Ranunculus abortivus, Carex blanda, Carex grisea, Carex hirtifolia, Athyrium angustum, Asarum canadense acuminatum, Trillium recurvatum, Eutrochium purpureum, Galium triflorum, Galium aparine, Boechera dentata, Alliaria petiolata, Lonicera maackii, Duchesnea indica, Hemerocallis fulva, Ligustrum vulgare

This keys nicely to D. oligosanthes in Flora of the Chicago Region (2017). Spikelets up to 4mm long and 1st glume up to 2mm long, as opposed to D. scribnerianum with spikelets less than 3.5mm and first glume up to 1.7mm long. Growing at base of sandstone cliff with southern aspect. Immediate habitat is degraded but dry prairie species (Symphyotrichum oblongifolium, Amorpha canescens, Sisyrinchium campestre, Comandra umbellata, Asclepias verticillata) and savanna species (Helianthus strumosus, Lespedeza frutescens, Solidago ulmifolia, Symphotrichum shortii, Elymus hystrix) reside along cliff top and nearby.