Smallanthus uvedalius

Smallanthus uvedalius (L.) Mack. ex Small.
Engl.: American bearsfoot, hairy leafcup, bearsfoot, leaf cup, uvedalia, yellow bear's-foot, yellow leaf cup, yellow-flower leaf-cup.
Bot. syn.: Osteospermum uvedalia L., Polymnia uvedalia (L.) L.

I have no articles for this botanical term, but there might be some for the next level down (if found).