Rhinanthus angustifolius

Large yellow rattle ( Rhinanthus angustifolius )

The Greater Yellow Rattle ( Rhinanthus angustifolius, Syn: .. Serotinus Rh ( Schönh. ) Schinz & Thell, Rh major Ehrh, Rh glaber Lam, Rh grandiflorus ( Wallr. ) Soó ) is a plant from the family of Broomrapes ( Orobanchaceae ). He was elected in 2005 to the flower of the year. Its German name from the rattle its ripe fruit in which the seeds rattle when they are moved.

Description

The Greater Yellow Rattle is an herbaceous plant that reaches the plant height of 20 to 60 cm. The stem is erect projecting branches, has a black dash and is almost bald. The lower teeth of the bracts are acuminate to short grannig, the teeth are 4-8 mm long, the awn 1-5 mm. The crown is 17 to 20 mm long, the corolla tube is smoothly curved upwards, colored yellow, only the tooth on the upper lip is purple. The lower lip of the crown rests on the upper lip, so the input of the corolla tube is closed. Blooms between June and September. The species is very rich in form, there are different subspecies distinguished.

Ecology

The flowers are flowers mask, that is, her often blaufleckiger throat is almost closed. Pollinators are bumblebees langrüsselige, rare even butterflies. The flowering period, including the early forms extends from May to September.

The approximately 3 mm long seeds are dispersed as a glider pilot.

Occurrence

The Great rattle occurs in meadows, dry grassland, forest and bushes seams on wet-dry, moderately fresh, base-rich and nutrient-poor clay soils. Through intensive mowing or grazing the species is encouraged. The species is found at altitudes up to 1300 m, but is rare in the Alps.

Swell

• Siegmund Seybold: Flora of Germany and neighboring countries. A book to determine the often wild and cultured vascular plants. Founded by Otto Schmeil, Jost hinge plates. 93 fully revised and expanded edition. Quelle & Meyer, Wiebelsheim 2006, ISBN 3-494-01413-2.
• Eckhart J. Jäger, Klaus Werner ( eds.): Excursion Flora of Germany. Founded by Werner Roth painter. 10, revised edition. Volume 4: Vascular Plants: Critical band, Elsevier, Spektrum Akademischer Verlag, Munich / Heidelberg 2005, ISBN 3-8274-1496-2.
• Hans -Joachim Zuendorf, Karl -Friedrich Günther, Heiko Korsch, Werner Westhus (eds.): Flora of Thuringia. The wild ferns and flowering plants of Thuringia. Hawthorn, Jena 2006, ISBN 3-936055-09-2.
• Ruprecht Duell, Herfried Kutzelnigg: Pocket Dictionary of Plants in Germany and neighboring countries. The most common central European species in the portrait. 7, corr. and ext. Edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01424-1.