Cardiospermum halicacabum
…the otherwise almost black seed. The kidney-shaped seeds have a diameter of about 6 mm and at their base a white, heart-shaped aril about 5 mm wide. Cardiospermum grandiflorum, being very similar to C. halicacabum, is a large growing, semi-woody perennial, whereas C. halicacabum is smaller in size, less woody and usual an…