Great brim

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Great brim
Bromusdiandrus.jpg

Bromus Diandrus ( Bromus diandrus )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sweet grasses (Poaceae)
Genre : Brome ( Bromus )
Type : Great brim
Scientific name
Bromus diandrus
Roth

The large-eared Trespe ( Bromus diandrus ) is a species of Trespen ( Bromus ) in the sweet grass family (Poaceae).

features

The large-year brine is an annual , possibly also winter annual plant that reaches heights of 15 to 80 centimeters. The lower leaf sheaths are scattered wire-haired. The stalk is usually hairy under the panicle . The length of the spikelets , including the (20) 30 to 60 millimeters long awn , is 60 to 90 millimeters. The lemmas are very rough and 22 to 36 millimeters long.

Flowering time is in May and June.

The seeds are short-lived.

The number of chromosomes is n = 56.

Occurrence

The large year bred comes in the Mediterranean. in Iran and the Arabian Peninsula. It is a neophyte in South Africa, North, Central and South America, Australia and New Zealand. It is seldom found in Germany. It occurs in West Bavaria, Baden-Württemberg, North Rhine-Westphalia and Berlin on dry ruderal sites such as rubble and transshipment points.

literature

  • Eckehart J. Jäger, Klaus Werner (Ed.): Excursion flora from Germany . Founded by Werner Rothmaler. 10th edited edition. tape 4 : Vascular Plants: Critical Volume . Elsevier, Spektrum Akademischer Verlag, Munich / Heidelberg 2005, ISBN 3-8274-1496-2 .

Individual evidence

  1. Rafaël Govaerts (ed.): Bromus diandrus. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved November 5, 2016.

Web links