Silphium perfoliatum

     Cup Plant

Asteraceae

  Fruit Type:  Achene

  Fruiting Period:  Oct

  Flowering Period:  Jul - Sep

  Color:  Light brown

  Size:  6 x 9 mm

  Shape:  Obovate with notch, flattened

  Surface Features:  Prominent central longitudinal ridge; somewhat winged

  Scarification:  Not required

  Stratification:  30 days

  Cotyledons:

  Stems:

  Leaves: