Gymnocalycium damsii is a very easy to grow and very free-flowering cactus, it may be solitary or freely offsetting.
Stem: Spherical-depressed to short cylindrical, up to 10 cm tall , 8-15 cm in diameter, green, pale-green or brownish-green, and highly decorative, often with horizontal clear and dark strips. Ribs: About 10-11, broad to acute, and more or less notched into chin-shape protrusions or warts . Radial spines: 5-8 up to 12 mm (or more) long, straight or slightly tortuous, short, nearly useless in terms of defense. Young spine are pastel-white or yellowish with a darker tip, later become pale-grey. Central spines: Usually absent. Flowers: From the centre, narrow, funnelform, about 6 cm long. External tepals greenish whit reddish margins, internal tepals white to light pinkish or greenish spreading. Scales on the ovary and flower tube small, scattered. Blooming season: It produces flowers almost continuously during the year. Fruit: Oblong, 2,5 cm long, 6 mm in diameter, reddish at maturity.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz
