bio.wikisort.org - Plant

Epithelantha bokei is a species of cactus known by the common names pingpong ball cactus and button-cactus. It is native to Texas in the United States and Coahuila in Mexico.[1]

Epithelantha bokei
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Genus:	Epithelantha
Species:	E. bokei
Binomial name
Epithelantha bokei L.D.Benson

This cactus is disc-shaped or cylindrical and usually unbranched. It has a flat top. It usually measures 2 to 5 centimeters in width. It is so thickly covered in pale-colored spines that it is white or yellowish in color. There are up to 90 on each areole. The longest are about 7 millimeters in length. The delicate pale pink[2] flowers are up to 1.7 centimeters long and wide.[1] The red fruit is about a centimeter long.[2] Much of the plant is located below ground, with a few centimeters above. It contracts into the ground during dry periods.[2]

This cactus grows on rocky or gravelly limestone substrates. Threats to the species include poaching and habitat degradation. It is in cultivation at the Desert Botanical Garden in Phoenix, Arizona.[2]

The specific epithet honors Norman H. Boke, plant anatomist and student of the Cactaceae.[3]

References

External links

• USDA Plants Profile

На других языках

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- [en] Epithelantha bokei

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[es] Epithelantha bokei

Epithelantha bokei L.D.Benson, es una especie fanerógama perteneciente a la familia de las cactáceas. Es originaria de Norteamérica

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