This daisy honors the name of Dr. George Engelmann, an eminent botanist of St. Louis, who died in 1884.
NIGGERHEAD
Niggerhead. Thimble Flower (Ratibida columnaris) is also called Mexican hat, niggertoe, “gallitos,” long-headed or prairie cone-flower, and black-eyed Susan, though the last term is erroneously used. It is a very handsome plant, which is widely distributed on plains from Southern Canada to Arizona, Texas, and Tennessee. In South Texas it is at its best in April and May; in North Texas it is lovely in late May and June.
Numerous erect stems grow from a woody perennial root and are commonly two to two and a half feet high. The long-stalked heads terminate the branches. The leaves are finely divided into long narrow segments, both leaves and stem being somewhat rough.
The showy flowers have drooping, velvety rays which are entirely yellow or reddish-brown or partly colored yellow and brown. The small tubular flowers are brown and are borne on a thimble-shaped or columnar disk which varies greatly in size on different flowers, sometimes being nearly two inches long, but it is usually about an inch long. The disk is gray-green before the flowers open.
The dwarf niggerhead (Ratibida tagetes) is quite similar to the large niggerhead in growth habit and coloring, but it is a smaller plant and has smaller flowers. It is found from Kansas to Mexico on dry plains and blooms a month later than the large niggerhead.
The niggerhead belongs to a small group of showy American plants. It was introduced into European gardens many years ago, whence it later made its way back to American gardens. The niggerhead group is closely related to the black-eyed Susan and other cone-flowers. Several giant yellow-flowered cone-flowers grow in East Texas.
CLASPING-LEAVED CONE-FLOWER BLACK-EYED SUSAN