Mammillaria

Mammillaria tayloriorum

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Pincushion Cactus Cluster Sahuarita Arizona 2013

Mammillaria bombycina11

Mammillaria elongata 7

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Mammillaria meicantha Engelm

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Mammillaria microhelia 11

Mammillaria is a large genus of cactus within the Cactaceae family, widely known for its diversity and unique features. Native primarily to Mexico, with some species found in the southwestern United States, Caribbean, Colombia, Venezuela, Guatemala, and Honduras, Mammillaria species are adapted to various environmental conditions, from arid deserts to mountainous regions.

Description

Mammillaria cacti are characterized by their globular to elongated shapes and are covered in spines arising from nodules, which are unique to this genus. These nodules, unlike the ribs of other cacti, give Mammillaria a distinctive appearance. The flowers of Mammillaria species are small to medium in size, ranging in color from white to yellow, pink, or red, often forming a crown around the top of the plant. The fruits are generally berry-like, containing small, black seeds.

Taxonomy

The genus Mammillaria was first described by Adrian Haworth in 1812. It is one of the largest genera in the cactus family, with over 200 recognized species and numerous subspecies and varieties. The taxonomy of Mammillaria has been complex and subject to revision, with species often being moved into or out of the genus based on genetic and morphological studies.

Cultivation and Uses

Mammillaria species are popular among cactus and succulent enthusiasts due to their ease of care and attractive flowers. They require a well-draining soil mix, moderate watering with a dry period in winter, and bright, indirect light. Many species are frost-tolerant to a degree but should be protected from extreme cold.

In addition to their ornamental value, some Mammillaria species have been used in traditional medicine and as a food source in their native habitats.

Conservation

Several Mammillaria species are considered endangered or vulnerable due to habitat loss, overcollection, and climate change. Conservation efforts are in place in various regions to protect these unique plants and their habitats.

Species

Some notable species within the genus include:

• Mammillaria bombycina
• Mammillaria hahniana
• Mammillaria magnimamma
• Mammillaria prolifera
• Mammillaria spinosissima

See Also

• Cactaceae
• Succulent plant
• Endangered species