松果

Echinacea is a genus of nine species of herbaceous plants in the family Asteraceae commonly called Coneflower.紫錐菊屬菊科(Asteraceae)中的九種草本植物的屬,通常被稱為錐花。 All are strictly native to eastern and central North America.所有這些嚴格都原產於北美東部和中部。 The plants have large, showy heads of composite flowers, blooming from early to late summer.這些植物的花頭大而艷麗,從初夏到夏末都盛開。 Some species are used in herbal medicines.一些物種用於草藥。
E. purpurea花中心該屬的名稱來自希臘的echino,由於多刺的中心盤,意為“多刺”。 They are herbaceous, drought-tolerant perennial plants growing to 1 or 2 m in height.它們是多年生草本植物,可生長至10或20 m的高度。 The leaves are lanceolate to elliptic, 1.5 – 10 cm long and XNUMX – XNUMX cm broad.葉子披針形到橢圓形,長XNUMX – XNUMX cm,寬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.像所有菊科一樣,這些花是複合花序,紫色(很少有黃色或白色)小花排列在一個突出的,略呈圓錐形的頭部(“圓錐形”)中,因為外部射線小花的花瓣往往指向下方(花頭打開後反射),形成一個圓錐形。