Cotyledons. Key characteristics: notched and butterfly-shaped.
Seedling and young vine. Key characteristics: heart-shaped leaves and variable degrees of hair presence.
Flowers. Key characteristics: funnel-shaped, range in color from purple, blue, rose-red, white or variegated.
Seed. Seed are 3-sided with two flattened sides and one rounded side. Color is brownish-black and the size is approximately 4.5 to 5.5 mm long.
Life cycle: summer annual.