Helianthus grosseserratus
Sawtooth Sunflower
Asteraceae
Fruit Type: Achene
Fruiting Period: Oct - Nov
Flowering Period: Aug - Oct
Color: Brown
Size: 2 x 4 mm
Shape: Quadrangular
Surface Features: Short-toothed crown; mottled with longitudinal ribs
Scarification: Not required
Stratification: Not required
Cotyledons: Oval with entire margins
Leaf arrangement: Opposite
Leaves: Simple, elongated oval, petiole, entire margins, hairs, prominent midvein