Polypodium cambricum: Welsh Polypody, Southern Polypody
Polypodium cambricum has many recorded cultivars including dozens still in cultivation. New forms continue to be found or bred from existing forms. Linnaeus’ original Polypodium cambricum was in fact a naturally occurring cultivar, now known as ‘Richard Kayse’. It is probably the earliest known named cultivar, having been originally found in Wales in around 1668-1670 by the eponymous Mr Kayse (also known as Kaise or Kayle).