Deep yellow, purple centre.
Flower-heads: large; terminal; solitary and composed of both ray and disk flowers; the former often one and three quarter inches long, the latter arranged in the form of a cone and chocolate brown in colour. Leaves: lanceolate; narrow; rough and disagreeable to the touch; the lower ones on petioles, the upper ones sessile. Stem: one to two feet high; rough; usually branching.
Black-eyed Susan, or Susie, as her playmates call her, is a beautiful wild country girl with a striking brunette face, and a gown of yellow and black, which fairly makes the meadows dance with life and gaiety. Perhaps she lacks that wealth of charm which cultivation gives, and is rather careless in choosing her companions. No doubt she is governed entirely by her love of fun. Her manner of growth is certainly ungraceful and her leaves and stem are rough and uncouth.
She is perfectly at home in the east, although she first came to us hidden in clover seeds from the west; where she is called by the unpoetical name of "nigger-head."
The southern rudbeckia (Plate CLI) is a more gorgeous flower, the cone of disk-flowers being much higher and the leaves broader than those of the above species.
R.Brittonii, Britton's cone-flower, has flower-heads that are from two to three inches broad. Its rays are two-lobed and about twelve in number. They are tipped with purple. The stem leaves are nearly oval and often occur with a lateral lobe. In the mountains of Pennsylvania, Virginia and Tennessee and in the woods it blooms abundantly from May until July.
The plant is stout and vigourous and it bears, as will be noticed, the name of Dr. Britton, who has expended so much time and affection upon the floral world.