Long-tubercle beehive cactus (Coryphantha robustispina)
Description
Coryphantha robustispina, commonly called the Pima pineapple, is a federally protected cactus of the Sonoran Desert. It is commonly found in Pima County, Arizona although it is also found throughout New Mexico and as far east as Texas. Coryphantha robustispina grows mostly solitarily with an ovoid shape. It has a clean greyish-greenish color and reaches 5-9 cm tall and 5-15 cm in diameter although larger plants are frequently found. The areolas are oval or cylindrical in shape with a deep furrow and one or two nectar glads. It has 1-4 central spines curved or hooked. They are white or grey with the tip being darker. They measure between 1-5 cm in length. The 6-16 radial spines are off-white between 1-3 cm in length. Their flowers are golden yellow, pale green or opaque yellow. The seed pods are cylindrical and green up to 5 cm.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Caryophyllales
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Family: Cactaceae
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Genus: Coryphantha
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