紫松果菊

Coneflower \Cone"flow`er\, n.
1. Any plant of the genus {Rudbeckia}; -- so called from the
cone-shaped disk of the flower head. They are cultivated
for their large usually yellow daisies with prominent
central cones. Also, any plant of the related genera
{Ratibida} and {Brauneria}, the latter usually known as
{purple coneflower}.
[Webster 1913 Suppl.]

2. any of various perennials of eastern US having thick rough
leaves and long-stalked showy flowers with drooping rays
and a conelike center.
[WordNet 1.5]