花磯菊(ハナイソギク) hana-iso-giku (hybrid chrysanthemum)

　ハナイソギクは、イソギクと栽培種のキクの自然交配種です。ハナイソギクの花には、イソギクにはない舌状花を、花の周囲に持っています。この舌状花は通常白か黄色ですが、写真の花では薄い赤色が、特に蕾の状態で目立っています。栽培種のキクの遺伝子を、受け継いでいるのでしょう。

　The "Hana-Iso-Giku" is a natural hybrid of the "Iso-Giku" and a cultivated variety of chrysanthemum. 
　Both "Hana-Iso-Giku" and "Iso-Giku" are Japanese names. Their scientific names are "Chrysanthemum pacificum" and "Chrysanthemum × marginatum," respectively.
　The flowers of the "Hana-Iso-Giku" have ray florets around the flower, which the "Iso-Giku" does not have. These ray florets are usually white or yellow, but in the flower shown in the photo, a pale red color stands out, especially when the flower is still in bud. It must have inherited the genes of cultivated chrysanthemums.