Althaea officinalis
…whole fruit is a schizocarp, about 1 cm (0.4 in) in diameter, which splits into about 20 kidney-shaped mericarps (seeds) about 2 mm (0.08 in) long. The common mallow is frequently called "marsh mallow" in colloquial terms, but the true marsh mallow is distinguished from all the other mallows growing in Great Britain…