West Highland Flora

Yellow Sedge x Tawny Sedge


Carex x fulva

 

Carex x fulva

Photo Carl Farmer
16 Jul 2005 Calligary, Skye
Top (male) spike c 19 mm long

Occasional where the parents grow together

Intermediate between the parents.  One parent can be Carex viridula ssp brachyrrhyncha, Carex viridula ssp oedocarpa or Carex viridula ssp viridula.  The other is Carex hostiana

ID: I can't claim to give definitive ID characters for hybrids, especially one where one of the parents is as variable as Carex viridula.   Generally speaking hybrids have to be determined by an expert.  However the thing to look for is the empty fruits, since the hybrid is sterile.  The fruits, when they look ripe, can be squeezed and there is nothing inside.  Earlier in the year a good sign is that the male spikes do not produce visible anthers.

Once established that the plant is sterile, check it for intermediate characters between the putative parents.  Other Carex species form hybrids but C x fulva is the commonest.

 

Carex x fulva

Photo Carl Farmer
16 Jul 2005 Calligary, Skye
Spike c 19 mm long

  Carex x fulva

Photo Carl Farmer
16 Jul 2005 Calligary, Skye
Spike c 9 mm long

Left: male spike
Above: upper female spike
Right: lower female spike

  Carex x fulva

Photo Carl Farmer
16 Jul 2005 Calligary, Skye
Spike c 11 mm long


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