United States, Illinois, DuPage, Morton Arboretum, Alongside a gravel trail in turf at the picnic area on the S side of Maple Grove Forest Preserve, Downers Grove.
Flower: N Fruit: N Vegetation: Y Bud: N
One or two plants with numerous geniculate and depressed culms radiating from a perennial crown. Anthers 1.5 mm long.