quillwort arrowhead, Sagittaria isoetiformis

A botanical oxymoron. Quillworts are aquatic ferns with long narrow unlobed leaves. Arrowheads are named for their lobed leaves. Quillwort arrowhead is undeniably an arrowhead, but it has unlobed leaves evocative of quillworts, and shares their damp habitat. So I guess it's oxymoronically appropriate. The flowers are smaller than many arrowheads, only about a half inch across. This arrowhead can be seen in AL, FL, GA, NC, SC, and Cuba. Wakulla Co FL, 7/8/18.