A diminutive Rebutia with small stems and small, short-tubed flowers. Originally described as carmine red-flowered, it has now been found in a variety of colours from red through pink to lilac, peach and salmon.
The description is here.
Plants of this species in the collection include:
Rebutia xanthocarpa var. dasyphrisea
Rebutia xanthocarpa MN115
Rebutia xanthocarpa RH489
Rebutia xanthocarpa WR1