Botanical name: Herissantia crispa    Family: Malvaceae (Mallow family)
Synonyms: Abutilon crispum, Abutilon cistiflorum

Bladder Mallow is a perennial or sometimes annual herb growing up to about 1.5 m tall, usually taking a trailing or creeping form. It is covered in whitish hairs. The oval or heart-shaped leaves are up to 7 cm long with wavy margins. Flower emerge singly from leaf axils, borne on a long-haired flower-stalk which is half erect and then jointed downward. The flower has five pale yellow oval petals each up to a cm long. The fruit is a lantern-like inflated sphere ribbed into segments. It is up to 2 cm wide, coated in long hairs, and splitting, each segment containing 2 or 3 black kidney-shaped seeds. Bladder Mallow is a native of America, now a Pantropical weed.

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The flower labeled Bladder Mallow is ...