Ranunculus sardous

Rough Buttercup ( Ranunculus Sardou )

The Rough buttercup or Sardinian buttercup (Ranunculus Sardou ) is a species of the genus Ranunculus (Ranunculus ), and thus the family Ranunculaceae.

Description

The Rua Buttercup is a biennial plant, it is the power of 10 to 30 centimeters. He has, in addition Ranunculus bulbosus the only Central European Crowfoot type (Ranunculus ) folded-back goblet-like tepals that are half as long as the lively yellow, kronblattartigen honey leaves. Especially characteristic feature is the dense pubescence of the hollow stem.

The species is diploid and tetraploid ago, the chromosome number is 2n = 16 or 32

Occurrence

The Rough Buttercup settled moist to wet fields, short-lived weeds corridors, creep and impact lawn, moist roadsides and ditches. It is characteristic for the association sardoi Myosuro - Ranunculetum and is threatened Central Europe. In Germany he is on the red list, and there is classified as 3. In particular, the elimination of arable kettle holes, intensified agriculture and the drainage of wetlands threaten the plant.

You can observe this in Europe from Spain and the UK to Sicily and the Balkan Peninsula, on the east to the Ukraine and in the north to southern Sweden.

Subspecies

The Rough Buttercup arrives in Europe in two subspecies:

• Subsp. Sardou
• Subsp. xatardii ( Lapeyr. ) Rouy & FOUC.