Escobaria robbinsiorum
Escobaria robbinsorum is a flowering plant in the genus Escobaria from the cactus family ( Cactaceae ). The specific epithet honors robbinsorum James A. Robbins and his sons John and Jimmi, who discovered the species. English common names are " Cochise Pincushion " and " Robbins 's Snowball Cactus".
Description
Escobaria robbinsorum grows individually. The often barely protruding from the soil surface drives reach heights of growth 2-6 inches and just such diameter. Your close-packed warts are 5-8 millimeters long. Central spines are not usually available. The eleven to 17 white radial spines have a darker tip and are rotated occasionally. They are 0.3 to 1.8 inches long.
The flowers are yellowish -green to pink. They are from 1.8 to 2 inches long and reach a diameter of 1.2 to 1.5 centimeters. The orange-red, short cylindrical fruits are 6 to 8.5 millimeters long.
Distribution, systematics and hazard
Escobaria robbinsorum is distributed in the United States in Cochise County, Arizona and the Mexican state of Sonora.
The first description as Cochemiea robbinsorum by W. Hubert Earle was published in 1976. David Richard Hunt put the type in 1978 in the genus Escobaria. Further nomenclatural synonyms are coryphantha robbinsorum ( WHEarle ) ADZimmerman (1978) and Neobesseya robbinsorum ( WHEarle ) Doweld ( 2000).
In the Red List of Threatened Species IUCN, the type is known as " Vulnerable (VU) ," ie, performed as endangered.