psyllium

Any of several annual Eurasian plants of the genus Plantago, especially P. ovata or P. afra, having opposite leaves and small flowers borne in dense spikes.

The seed husks of any of these plants, widely used as a mild bulk laxative and sometimes added to foods as a dietary source of soluble fiber.

The common name used for several members of the plant genus Plantago whose seeds are used commercially for the production of mucilage.

plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative