Delaware Wildflowers • Scientific names
Rubiaceae — Madder family
Flowers with visible stamens.
White Clay Creek State Park -- Possum Hill
Flowers with visible pistils. The upper flower has five petals, which is unusual.
Lums Pond State Park
White Clay Creek State Park -- Pump House Road
The flowers are perfect, but occur in two forms.
More information on this plant, from other sources.