United States, Indiana, Porter, Ca. 100 m SE from plot A IV of Norm Henderson Inland Marsh Study. Far south-eastern corner of Inland Marsh. Black oak savanna, gentle slope, west-facing and sandy.
TRS: T37N R7W S33SE 1/4
Euphorbia corollata; Andropogon scoparius; Quercus velutina
Flower: Y Fruit: N Vegetation: Y Bud: N
About 30 plants in an area 30x50 m, with a few more further from the center. Most plants of 3-7 semi-erect stems, 20-40 cm high. Blue banner petals. Another uncollected plant had whole banner petals, open at 8 am, flaccid 11 am.