C. trichosperma, although he is, we think, wrong in making 
it a variety of that species. 
About 3 feet high, erect, branching but little, bearing 
towards its summit a few showy heads of flowers. Leaves 
linear, pubescent, 3-5-parted, serrated, opposite. Rays 8, 
oblong, nearly entire, bright yellow, three times as long 
as the involucrum. Fruit wedge-shaped, nearly smooth, 
2-horned at the end. T 
