Rhinanthus

Small yellow rattle ( Rhinanthus minor)

The rattling pots ( Rhinanthus ) constitute a genus within the broomrape family ( Orobanchaceae ) and include a number of species that live as parasites half. The distribution of the genus is North America and Eurasia, ie the Holarctic.

Name

Its common names owe the rattling pots the ripe fruit in which the seeds loud audible rattle when they are moved. Rattling pots tap with special roots ( haustoria ) to the root systems of other plants. The farmers due to their low feeding value as " weeds " evaluated plant species are known locally as the milk or milk thief rogue, because the plants thrive only fairly good in the vicinity of the half- parasites.

The botanical name is derived from rhinos = trunk ( trunk-like extended helmet peak); Rhinanthus can be interpreted as " nasenblütig ".

System

Until recently Rhinanthus was counted among the figwort family ( Scrophulariaceae Rachenblütler ). Molecular biological study but has a closer relationship between all six parasites, which have been earlier than " Rachenblütler " classified, highlighted by the broomrape ( Orobanche ).

A synonym is alectorolophus tin.

Description

Rattle species are annuals, herbaceous plants halbparasitische.

The leaves are opposite. Are formed terminal racemose inflorescences. The inflorescence contains bracts. The flower is zygomorphic and cruciform. There are only four stamens present. Are formed capsule fruits. The seeds are broadly winged.

Rattle - types as semi parasite

It is semi- parasites ( hemiparasite ). Similar to the species of the genus Euphrasia and the rattle species have only vestigial root system. The other hand, you make small Saugwarzen at the roots of neighboring plants and penetrate into their pathways. Rattle species damage their host plants, as they mainly refer them larger amounts of water.

Types (selection)

The genus rattling pots ( Rhinanthus ) include about 45 to 50 species in the Holarctic.

  • Central European rattle species ( Rhinanthus ): Shaggy yellow rattle ( Rhinanthus alectorolophus )
  • Puszta - rattle ( Rhinanthus borbasii )
  • Carinthia - rattle ( Rhinanthus carinthiacus )
  • Bristlecone rattle ( Rhinanthus glacialis )
  • Small yellow rattle ( Rhinanthus minor)
  • Alpine rattle or recto -rattle ( Rhinanthus pulcher )
  • Glandular yellow rattle ( Rhinanthus rumelicus )
  • Large yellow rattle ( Rhinanthus serotinus ), Flower of 2005

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