Marshmallow (Althea officinalis) is a perennial flowering weed of moist, damp places. It’s soft, hairy stock stands 3 to 4 feet high. It has a branched stem. It’s soft, hairy leaves are deeply cut in 3 divisions, similar in shape to a maple leaf. The flowers are born along the upper stalk. They have 5 heart shaped petals, usually white, to bluish pink or mauve. They bloom in late summer. Flowers, leaves, and root are edible.