## Encyclopedia > Lamiaceae

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# Lamiaceae

Lamiaceae is a family of plants including many culinary herbs, such as basil and thyme. It is also called Labiatae because the flowers have petals fused into an upper lip and a lower lip.

The leaves contain aromatic essential oils[?] and emerge oppositely, each pair at right angles to the previous one (called decussate). Many species have square stems.

Cladist unite the order containing the Lamiaceae, Lamiales, and the order Scrophulariales in the same order, usually called Lamiales.

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