All the information and photos in cactus art files are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.

Mammillaria fraileana "YELLOW"
This plant  differs for having greenish-yellow stigma lobes instead of bright carmine-pink ones.  For all other characteristics it is comparable to the standard from.
 

Description: Slowly offsetting, irregularly forming small clusters.
Stem: Cylindrical, narrow, eventually clumping near the base of the plant, without latex, 3-4 cm in diameter , 15 cm tall. Body is green, but often reddish if grown in full light.
Tubercles: Pyramidal without latex, axil naked (or with a few bristles)
Roots: Fibrous or moderately swollen..
Radial spine: 11 to 12, 8 to 10 mm long, thin and white.
Central spine: 3 to 4, 10 mm long, dark brown, with one central spine, hooked.
Flowers: Light pink flower, petals with darker pink median line, 2,5-3 cm in diameter, stigma yellowish-green.
Fruit: Red, clavate and long lasting on the plant.
Seed: Black.
Blooming season (Europe): From May to September.

Photo of conspecific taxa, varieties, forms and cultivars of Mammillaria fraileana.

• Mammillaria fraileana
• Mammillaria fraileana "Yellow"

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Scientific name:  Mammillaria fraileana (Britt. & Rose) Boed. 1933
"YELLOW"

First description by Britton & Rose 1923, Neomammillaria fraileana.

Origin: This plant is found in cultivation only.

Conservation status: Listed in CITES appendix 2.

• Bartschella albicans ssp. fraileana (Britton & Rose) D.R. Hunt 1997
• Chilita fraileana (Britton & Rose) Orcutt 1926
• Ebnerella fraileana  (Britton & Rose) Buxbaum 1951
• Neomammillaria fraileana
• Mammillaria albicans ssp. fraileana
• Mammillaria albicans

The classical M. fraileana (above) has magenta stigma lobes.

Cultivation: This plant isn't famous for being easy to cultivate, but in good conditions with excellent ventilation, it grows without difficulty. It is especially sensitive to over-watering. So careful watering and an open mineral potting soil are a must. Avoid the use of peat or other humus sources in the potting mixture. Don't add limestone to the potting mix, which must be moderately acidic.  It can be sensitive to frost (but some populations are resistant to -10° C).  Requires maximum sun exposure in order to reach its full potential, and  to achieve success in flowering. A winter rest that allows the plant to shrivel (perhaps losing up to 25% of its summer height) will encourage flowering and long term survival.  Be careful to encourage slow growth.

Propagation: Seeds or offsets.

All the information and photos in cactus art files are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.