Chamaemelum

Roman chamomile ( Chamaemelum nobile )

The Roman Chamomile ( Chamaemelum ) are a genus of flowering plants in the sunflower family ( Asteraceae).

Features

The Roman chamomile are annual or perennial herbaceous plants. The leaves are alternate and are two to three times pinnatisect, the leaflets are linear.

The flower heads are stalked, medium in size and consist of only tubular flowers or have tubes and ray florets. The bracts are in two or more rows and from outside to inside to larger. The basket bottom is flat curved, hemispherical to conical, not hollow and filled with chaff obtuse leaves. Ray florets are usually available, female or sterile. Your tube is double-leaf, flattened and has a pendant, white, ganzrandige or two to tridentate tongue. The crown of the tube is yellow blossoms and bears at the bottom an extension that surrounds the tip of the fruit.

The achenes are slightly laterally compressed and have no distinct ribs. A pappus is lacking.

System

The genus Chamaemelum is placed in the subfamily herbaceous and here in the tribe Anthemideae within the family Asteraceae. How many times in this tribe, the assignment of species to genera is often unclear and changes frequently. The number of species for the genus range from two to six

The two always counted the genus species are:

• Roman chamomile ( Chamaemelum nobile (L. ) All. )
• Chamaemelum fuscatum ( Brot. ) Vasc.

Furthermore, partially following types to the genus:

• Anthemis triumfettii (L. ) DC. ( Syn: All Chamaemelum discoideum. )
• Cladanthus mixtus (L.) Chevall. ( Syn: Chamaemelum mixtum (L. ) All. )

Documents

• Siegmund Seybold (ed.): Schmeil - Fitschen interactive. CD -ROM, Version 1.1, Quelle & Meyer, Wiebelsheim 2002, ISBN 3-494-01327-6.