silphium perfoliatum, the cup plant or cup-plant,

silphium perfoliatum cup plant cup-plant species flowering family asteraceae native eastern central north america background beautiful beauty bloom blooming blossom botany bright close color colorful countryside cup delicate field flora floral flower garden glass glossy green herbaceous isolated leaf macro natural nature orange organic outdoors perennial perfoliatum petal plant pollen pollination rosinweed season silphium single spring summer sunflower sunny sunshine wild yellow