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Mammillaria grahamii Engelm.
Graham's nipple cactus, Arizona fishhook cactus
Synonym(s): Mammillaria grahamii var. grahamii, Mammillaria grahamii var. oliviae, Mammillaria microcarpa, Mammillaria microcarpa var. auricarpa, Mammillaria milleri, Mammillaria oliviae
USDA Symbol: MAGR9
USDA Native Status: L48 (N)
A low, cylindrical cactus with 1 or several stems and many hooked spines; flowers pink or lavender.
The genus name refers to the projections on the stems, which resemble mammary glands. Similar species of Mammillaria and Coryphantha are distinguished by the position of the flower relative to the cluster of spines. In Coryphantha older projections have a groove on the upper side. Both genera have some species with hooked spines. The wild-plant enthusiast who wishes to find reference to Grahams Nipple Cactus in more technical literature must check under two more scientific names: the long-used M. microcarpa and the recently used M. milleri. The synonymy reflects historical problems in nomenclature and the difficulty of obtaining a satisfactory classification, problems that are very common in the Cactaceae.
Plant CharacteristicsDuration: Perennial Habit: Cactus/Succulent Flower:
Light pink edges with darker pink centers and green stigmas. Fruit:
Long, thin, red fruits. Size Class:
Bloom InformationBloom Color: Pink , Green
Bloom Time: Apr , May , Jun , Jul
, TX Native Distribution:
Southeastern California east to western Texas and south to northern Mexico. Native Habitat:
Dry, gravelly places in deserts and arid grasslands.
Record Last Modified: 2013-07-01
Research By: TWC Staff