Rarissima cultivar con spine trifrorcate (Split spines), questa caratteristica unica non è visibile in nessuna altra specie di cactus.
Le fioriture sono abbondanti e molto durature. Richiede esposizioni in pieno sole.

Family: Cactaceae

Scientific name: Mammillaria bombycina
First description by Quehl, Monatsschr. Kakteenk. 20: 149 with fig. (1910)

cv. Split spines (sometime called cv. Trispina )

Synonyms of M. bombycina:

• Neomammillaria bombycina (Quehl) Britton and Rose 1923,
• Chilita bombycina (Quehl) Orcutt 1926
• Ebnerella bombycina (Quehl) Buxbaum 1951

This very rare cultivar has unique "Split spines". This is an exclusive feature never seen in other cacti. 

Description:  Plants often form large clumps up to 80 cm wide. Stems globose to club shaped, bright green, 7 - 14 cm tall, 5 - 6 cm in diameter. With dense wool and bristles in the axil.
Spines: Central: 3 - 8, yellow with dark reddish brown, straight, and up to 11 mm long. The lowermost one is 20 mm long, split and forms two accessories with lateral forking.  Radials: 30 - 64, stiff, thin, needle-like, glassy white to yellowish white, up  to 8 mm.
Flower: Funnel-form, bright pink, up to 15 mm in length and in diameter.

It is an easy bloomer and one of the easier species to grow, they are the most beautiful when cultivated in the full sun.

Cultivation: Water regularly in summer, but do not over-water (rot prone).  Use a pot with good drainage and a very porous potting media. Keep dry in winter. Feed with a high potassium fertilizer in summer.  It is quite frost-resistant if kept dry, hardy as low as -5° C (some reports give it hardy to -12°C).  Outside full sun or afternoon shade, inside it needs bright light, and some direct sun.