Flowers are large with pink, blue, lilac, and purple to white, brown, yellow, orange and almost black flowers. Skin irritation may result from the sap and seeds in some species. Climbing plants with showy flowers, singly or in clusters and are red, pink, white, yellow, blue or purple in color. Fruit is a usually flat legume pod containing several seeds. Upon ingestion, causes permanent paralysis, slow and weak pulse, shallow breathing, pain, weakness, tremors, excitement, and convulsions.
Flowers are distinctive in having two small petals opposed by three large petals.
Flowers may be blue, pink, red, yellow, or white. Poisoning uncommon except when plant extracts are employed in home medicine. Flowers are yellow. Fruit is smooth and more or less round, usually red. Leaves, vines, and sprouts.