This species was named in honor of Dr. Walter Kiener of the Nebraska Game, Forestation, and Parks Commission who collected it and who has collected much other fine material from Nebraska.

Although the affinity of Chara Kieneri is most nearly with C. excelsa Allen emend. Robinson, it differs in several ways and is unlike any other Chara known to the author in that the anterior bracts and bracteoles range from the usual unforked condition, through a series showing some forms with a wide base suddenly narrowing, some with a slight projection, some forked with one short arm and one long arm, and finally some forked with almost equal arms.