Plantago is a genus of small, inconspicuous plants commonly called plantains. They share this name with the very dissimilar plantain, a kind of banana. Leaves are sessile, but have a narrow part near the stem which is a pseudo-petiole. They have three or five parallel veins that diverge in the wider part of the leaf. Leaves are broad or narrow, depending on the species. Inflorescences are borne on stalks and can be a short cone or a long spike. The plants are typically 5-40 cm tall.

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... PSYLLIUM (Fiberall®, Konsyl®, Metamucil®, Perdiem®) is a bulk-forming laxative. When taken by mouth, methylcellulose absorbs water in the stomach and intestines, thus regulating the bulk (size), consistency, and movement of the stool. It can treat chronic constipation or chronic diarrhea. Psyllium is available without prescription as granules, powder, or wafers. ...
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Metamucil is a bulk-producing laxative and fiber supplement manufactured by ...
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