Marjoram
Marjoram, a name given to two groups of aromatic, perennial herbs native to the Old World. Both are used as seasoning in cooking. Sweet marjoram is a low-growing plant with oval leaves and spikes of small purplish or whitish flowers. Sweet marjoram is sometimes grown as ornamental foliage in borders and rock gardens. Wild, or pot, marjoram grows 1 to 2 ½ feet (30 to 76 cm) high. It bears broad, oval leaves and loose clusters of purplish-pink flowers. This plant is common in fields and along roadsides in the eastern United States. It is a source of the spice oregano.
Sweet marjoram is Origanum majorana; wild, Origanum vulgare. Both belong to the mint family, Labiatae.