Ladies' Tresses
White blooms grow on top of stalk. It's a jewel, but fairly discreet in amongst the thick of things.
Leaves are few and in a cluster at base of plant, with a few up the stalk a couple of inches.
The plant grows 18" to 24" tall, it seems.
and his widely known, authoritative books "Trees of Arkansas" and "Wildflowers of Arkansas" and their invaluable help identifying these plants.
This can be found on page 64 in "Wildflowers of Arkansas". It is not uncommon but often overlooked.