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Mammillaria standleyi
Scientific Name: Mammillaria standleyi (Britton & Rose) Orcutt
Synonym: Mammillaria laneusumma, Chilita xanthina, Neomammillaria xanthina, Mammillaria xanthina, Mammillaria mayensis, Mammillaria floresii, Mammillaria auritricha, Mammillaria auricantha, Neomammillaria standleyi, Mammillaria montensis
Family: Cactaceae
Mammillaria  standleyi
The picture was taken mid June at the Phoenix Desert Botanical Garden.
Recommended Temperature Zone:
sunset: 13-24, 29, 30
USDA: 10-11

Frost Tolerance: Hardy in Phoenix to 28F (-2C)

Minimum Avg. Temperature: 50F (10C)

Sun Exposure: Light shade in summer in Phoenix, full sun elsewhere

Origin: Mexico (Sonora, Sinaloa, Chihuahua)

Growth Habits: Clumping, up to 6 inches in diameter (15 cm); milky sap; dark green tubercles 0.4 inch tall (1 cm), 0.3 inch wide at the base (7-8 mm); axils with abundant white bristles; 4 to 6 reddish brown central spines, 0.24 to 0.32 inch long (6-8 mm); 16 to 20 radials, 0.16 to 0.32 inch long (4-8 mm).

Watering Needs: Regular water in summer

Propagation: Offsets

Mammillaria  standleyi

March 15th at the Desert Botanical Garden

Blooming Habits:
Purplish pink flowers, 0.5 inch in diameter (12 mm). Club-shaped red fruit, 0.5 to 0.6 inch long (12-15 mm), with remnants of dry flower.

Fruiting Habits:

Check for Field Collection numbers at Ralph Martin's Site

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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