Rebutia and Sulcorebutia are small South American cacti admired for their compact, rounded bodies and exceptionally colourful flowers. Native mainly to the mountainous regions of Bolivia and Argentina, many varieties remain low-growing and gradually form clusters of offsets. Their flowers are often large in proportion to the plant and may appear in vivid shades of orange, red, yellow, pink or purple. With their manageable size, varied body textures and reliable floral displays under suitable conditions, these cacti are popular among collectors seeking colour in a compact form.