Photo ©
Carl Farmer |
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. |
