松果

Echinacea is a genus of nine species of herbaceous plants in the family Asteraceae commonly called Coneflower.紫锥菊属菊科(Asteraceae)中的九种草本植物的属,通常被称为锥花。 All are strictly native to eastern and central North America.所有这些严格都原产于北美东部和中部。 The plants have large, showy heads of composite flowers, blooming from early to late summer.这些植物的花头大而艳丽,从初夏到夏末都盛开。 Some species are used in herbal medicines.一些物种用于草药。
E. purpurea花中心该属名称来自希腊棘鱼,由于多刺的中心盘,意为“多刺”。 They are herbaceous, drought-tolerant perennial plants growing to 1 or 2 m in height.它们是多年生草本植物,可生长至10或20 m的高度。 The leaves are lanceolate to elliptic, 1.5 – 10 cm long and XNUMX – XNUMX cm broad.叶子披针形到椭圆形,长XNUMX-XNUMX cm,宽XNUMX-XNUMX cm。 Like all asteraceae, the flowers are a composite inflorescence, with purple (rarely yellow or white) florets arranged in a prominent, somewhat cone-shaped head — "cone-shaped" because the petals of the outer ray florets tend to point downward (are reflexed) once the flower head opens, thus forming a cone.像所有菊科一样,这些花是复合花序,紫色(很少有黄色或白色)小花排列在一个显着的,略呈圆锥形的头部(“圆锥形”)中,因为外部射线小花的花瓣倾向于向下花头打开后反射),形成一个圆锥形。