Chamaemelum nobile, one of the two species of plants most commonly known as camomile.
Any of several other similar plants. (See below)
Matricaria recutita (formerly known as Matricaria chamomilla), German chamomile or Hungarian chamomile, with fragrant flowers used for tea, and as an herbal remedy.
Chamaemelum nobile (formerly Anthemis nobilis), English chamomile or Roman chamomile, a ground cover with fragrant foliage.